6544261260 has 72 divisors (see below), whose sum is σ = 19906417440. Its totient is φ = 1740258048.

The previous prime is 6544261259. The next prime is 6544261271. The reversal of 6544261260 is 621624456.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13984 + ... + 115256.

It is an arithmetic number, because the mean of its divisors is an integer number (276478020).

Almost surely, 2^6544261260 is an apocalyptic number.

6544261260 is a gapful number since it is divisible by the number (60) 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 6544261260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9953208720).

6544261260 is an abundant number, since it is smaller than the sum of its proper divisors (13362156180).

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

6544261260 is a wasteful number, since it uses less digits than its factorization.

6544261260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101647 (or 101642 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 6544261260 is about 80896.6084579570. The cubic root of 6544261260 is about 1870.4820418394.

The spelling of 6544261260 in words is "six billion, five hundred forty-four million, two hundred sixty-one thousand, two hundred sixty".