56911243579 has 4 divisors (see below), whose sum is σ = 56943164176. Its totient is φ = 56879322984.

The previous prime is 56911243561. The next prime is 56911243589. The reversal of 56911243579 is 97534211965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97534211965 = 5 ⋅19506842393.

It is a cyclic number.

It is not a de Polignac number, because 56911243579 - 2¹⁷ = 56911112507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56911243589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15957624 + ... + 15961189.

It is an arithmetic number, because the mean of its divisors is an integer number (14235791044).

Almost surely, 2^56911243579 is an apocalyptic number.

56911243579 is a deficient number, since it is larger than the sum of its proper divisors (31920597).

56911243579 is a wasteful number, since it uses less digits than its factorization.

56911243579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31920596.

The product of its digits is 2041200, while the sum is 52.

The spelling of 56911243579 in words is "fifty-six billion, nine hundred eleven million, two hundred forty-three thousand, five hundred seventy-nine".