56679011129 has 16 divisors (see below), whose sum is σ = 62350864128. Its totient is φ = 51195050112.

The previous prime is 56679011119. The next prime is 56679011141. The reversal of 56679011129 is 92111097665.

It is a cyclic number.

It is not a de Polignac number, because 56679011129 - 2²⁰ = 56677962553 is a prime.

It is a super-2 number, since 2×56679011129² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56679011119) 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 15 ways as a sum of consecutive naturals, for example, 4770254 + ... + 4782120.

It is an arithmetic number, because the mean of its divisors is an integer number (3896929008).

Almost surely, 2^56679011129 is an apocalyptic number.

It is an amenable number.

56679011129 is a deficient number, since it is larger than the sum of its proper divisors (5671852999).

56679011129 is a wasteful number, since it uses less digits than its factorization.

56679011129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19744.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 56679011129 in words is "fifty-six billion, six hundred seventy-nine million, eleven thousand, one hundred twenty-nine".