56861643412 has 48 divisors (see below), whose sum is σ = 116112407040. Its totient is φ = 23860620000.

The previous prime is 56861643383. The next prime is 56861643431. The reversal of 56861643412 is 21434616865.

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, 346087 + ... + 483217.

It is an arithmetic number, because the mean of its divisors is an integer number (2419008480).

Almost surely, 2^56861643412 is an apocalyptic number.

It is an amenable number.

56861643412 is an abundant number, since it is smaller than the sum of its proper divisors (59250763628).

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

56861643412 is a wasteful number, since it uses less digits than its factorization.

56861643412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137452 (or 137450 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 56861643412 in words is "fifty-six billion, eight hundred sixty-one million, six hundred forty-three thousand, four hundred twelve".