2643198480 has 240 divisors, whose sum is σ = 9914573760. Its totient is φ = 650571264.

The previous prime is 2643198473. The next prime is 2643198487. The reversal of 2643198480 is 848913462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2643198473) and next prime (2643198487).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643198487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247491 + ... + 257949.

It is an arithmetic number, because the mean of its divisors is an integer number (41310724).

Almost surely, 2^2643198480 is an apocalyptic number.

2643198480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2643198480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4957286880).

2643198480 is an abundant number, since it is smaller than the sum of its proper divisors (7271375280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2643198480 is a wasteful number, since it uses less digits than its factorization.

2643198480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500 (or 10482 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 2643198480 is about 51412.0460592651. The cubic root of 2643198480 is about 1382.6425735349.

The spelling of 2643198480 in words is "two billion, six hundred forty-three million, one hundred ninety-eight thousand, four hundred eighty".