56917777579 has 8 divisors (see below), whose sum is σ = 61778716160. Its totient is φ = 52125788736.

The previous prime is 56917777561. The next prime is 56917777601. The reversal of 56917777579 is 97577771965.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56917777579 - 2⁵ = 56917777547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56917771579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17235714 + ... + 17239015.

It is an arithmetic number, because the mean of its divisors is an integer number (7722339520).

Almost surely, 2^56917777579 is an apocalyptic number.

56917777579 is a deficient number, since it is larger than the sum of its proper divisors (4860938581).

56917777579 is a wasteful number, since it uses less digits than its factorization.

56917777579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34474869.

The product of its digits is 204205050, while the sum is 70.

The spelling of 56917777579 in words is "fifty-six billion, nine hundred seventeen million, seven hundred seventy-seven thousand, five hundred seventy-nine".