56779008939 has 24 divisors (see below), whose sum is σ = 86216802672. Its totient is φ = 37334131200.

The previous prime is 56779008907. The next prime is 56779008953. The reversal of 56779008939 is 93980097765.

It is not a de Polignac number, because 56779008939 - 2⁵ = 56779008907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56779008959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1582662 + ... + 1618139.

It is an arithmetic number, because the mean of its divisors is an integer number (3592366778).

Almost surely, 2^56779008939 is an apocalyptic number.

56779008939 is a deficient number, since it is larger than the sum of its proper divisors (29437793733).

56779008939 is an equidigital number, since it uses as much as digits as its factorization.

56779008939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200889 (or 3200877 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The spelling of 56779008939 in words is "fifty-six billion, seven hundred seventy-nine million, eight thousand, nine hundred thirty-nine".