2866649760 has 144 divisors (see below), whose sum is σ = 10535006664. Its totient is φ = 705632256.

The previous prime is 2866649759. The next prime is 2866649761. The reversal of 2866649760 is 679466682.

2866649760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2866649759) and next prime (2866649761).

It can be written as a sum of positive squares in 4 ways, for example, as 2400608016 + 466041744 = 48996^2 + 21588^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 2866649697 and 2866649706.

It is not an unprimeable number, because it can be changed into a prime (2866649761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57847 + ... + 95286.

Almost surely, 2^2866649760 is an apocalyptic number.

2866649760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2866649760 is an abundant number, since it is smaller than the sum of its proper divisors (7668356904).

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

2866649760 is a wasteful number, since it uses less digits than its factorization.

2866649760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153167 (or 153156 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The square root of 2866649760 is about 53541.1034626669. The cubic root of 2866649760 is about 1420.5555189425. Note that the first 4 decimals are identical.

The spelling of 2866649760 in words is "two billion, eight hundred sixty-six million, six hundred forty-nine thousand, seven hundred sixty".