56107059978 has 16 divisors (see below), whose sum is σ = 112247726976. Its totient is φ = 18696752160.

The previous prime is 56107059893. The next prime is 56107059989. The reversal of 56107059978 is 87995070165.

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, 1378563 + ... + 1418678.

It is an arithmetic number, because the mean of its divisors is an integer number (7015482936).

Almost surely, 2^56107059978 is an apocalyptic number.

56107059978 is an abundant number, since it is smaller than the sum of its proper divisors (56140666998).

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

56107059978 is a wasteful number, since it uses less digits than its factorization.

56107059978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800589.

The product of its (nonzero) digits is 4762800, while the sum is 57.

The spelling of 56107059978 in words is "fifty-six billion, one hundred seven million, fifty-nine thousand, nine hundred seventy-eight".