56779297765 has 32 divisors (see below), whose sum is σ = 70533421056. Its totient is φ = 43857465600.

The previous prime is 56779297741. The next prime is 56779297777.

56779297765 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56779297765 - 2⁵ = 56779297733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56779297694 and 56779297703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4463404 + ... + 4476106.

It is an arithmetic number, because the mean of its divisors is an integer number (2204169408).

Almost surely, 2^56779297765 is an apocalyptic number.

It is an amenable number.

56779297765 is a deficient number, since it is larger than the sum of its proper divisors (13754123291).

56779297765 is a wasteful number, since it uses less digits than its factorization.

56779297765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13029.

The product of its digits is 350065800, while the sum is 70.

The spelling of 56779297765 in words is "fifty-six billion, seven hundred seventy-nine million, two hundred ninety-seven thousand, seven hundred sixty-five".