56179388699 has 4 divisors (see below), whose sum is σ = 64205015664. Its totient is φ = 48153761736.

The previous prime is 56179388687. The next prime is 56179388701. The reversal of 56179388699 is 99688397165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56179388699 - 2²⁰ = 56178340123 is a prime.

It is a super-2 number, since 2×56179388699² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56179388669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4012813472 + ... + 4012813485.

It is an arithmetic number, because the mean of its divisors is an integer number (16051253916).

Almost surely, 2^56179388699 is an apocalyptic number.

56179388699 is a deficient number, since it is larger than the sum of its proper divisors (8025626965).

56179388699 is an equidigital number, since it uses as much as digits as its factorization.

56179388699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025626964.

The product of its digits is 176359680, while the sum is 71.

The spelling of 56179388699 in words is "fifty-six billion, one hundred seventy-nine million, three hundred eighty-eight thousand, six hundred ninety-nine".