56907581808 has 80 divisors (see below), whose sum is σ = 183286768896. Its totient is φ = 14781189120.

The previous prime is 56907581791. The next prime is 56907581851. The reversal of 56907581808 is 80818570965.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7694841 + ... + 7702232.

Almost surely, 2^56907581808 is an apocalyptic number.

It is an amenable number.

56907581808 is an abundant number, since it is smaller than the sum of its proper divisors (126379187088).

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

56907581808 is a wasteful number, since it uses less digits than its factorization.

56907581808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15397102 (or 15397096 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 57.

The spelling of 56907581808 in words is "fifty-six billion, nine hundred seven million, five hundred eighty-one thousand, eight hundred eight".