56457731364 has 24 divisors (see below), whose sum is σ = 132496183680. Its totient is φ = 18710461344.

The previous prime is 56457731329. The next prime is 56457731377. The reversal of 56457731364 is 46313775465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13595644 + ... + 13599795.

It is an arithmetic number, because the mean of its divisors is an integer number (5520674320).

Almost surely, 2^56457731364 is an apocalyptic number.

It is an amenable number.

56457731364 is an abundant number, since it is smaller than the sum of its proper divisors (76038452316).

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

56457731364 is a wasteful number, since it uses less digits than its factorization.

56457731364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27195619 (or 27195617 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 51.

The spelling of 56457731364 in words is "fifty-six billion, four hundred fifty-seven million, seven hundred thirty-one thousand, three hundred sixty-four".