56931213312 has 672 divisors, whose sum is σ = 191751874560. Its totient is φ = 16641884160.

The previous prime is 56931213307. The next prime is 56931213329. The reversal of 56931213312 is 21331213965.

56931213312 is a `hidden beast` number, since 5 + 6 + 9 + 312 + 1 + 331 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1836490737 + ... + 1836490767.

Almost surely, 2^56931213312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56931213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95875937280).

56931213312 is an abundant number, since it is smaller than the sum of its proper divisors (134820661248).

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

56931213312 is a wasteful number, since it uses less digits than its factorization.

56931213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 78 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The spelling of 56931213312 in words is "fifty-six billion, nine hundred thirty-one million, two hundred thirteen thousand, three hundred twelve".