56917820940 has 48 divisors (see below), whose sum is σ = 164510868480. Its totient is φ = 14688469440.

The previous prime is 56917820933. The next prime is 56917820951. The reversal of 56917820940 is 4902871965.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15298630 + ... + 15302349.

It is an arithmetic number, because the mean of its divisors is an integer number (3427309760).

Almost surely, 2^56917820940 is an apocalyptic number.

It is an amenable number.

56917820940 is an abundant number, since it is smaller than the sum of its proper divisors (107593047540).

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

56917820940 is a wasteful number, since it uses less digits than its factorization.

56917820940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30601022 (or 30601020 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 56917820940 in words is "fifty-six billion, nine hundred seventeen million, eight hundred twenty thousand, nine hundred forty".