56831975838 has 32 divisors (see below), whose sum is σ = 137774488320. Its totient is φ = 17221810680.

The previous prime is 56831975819. The next prime is 56831975857. The reversal of 56831975838 is 83857913865.

56831975838 is a `hidden beast` number, since 568 + 3 + 19 + 7 + 58 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (56831975819) and next prime (56831975857).

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, 47837770 + ... + 47838957.

It is an arithmetic number, because the mean of its divisors is an integer number (4305452760).

Almost surely, 2^56831975838 is an apocalyptic number.

56831975838 is an abundant number, since it is smaller than the sum of its proper divisors (80942512482).

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

56831975838 is a wasteful number, since it uses less digits than its factorization.

56831975838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95676749 (or 95676743 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 56831975838 in words is "fifty-six billion, eight hundred thirty-one million, nine hundred seventy-five thousand, eight hundred thirty-eight".