56865864129 has 8 divisors (see below), whose sum is σ = 75843060672. Its totient is φ = 37899621840.

The previous prime is 56865864113. The next prime is 56865864131. The reversal of 56865864129 is 92146856865.

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

It is not a de Polignac number, because 56865864129 - 2⁴ = 56865864113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56865864109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2726442 + ... + 2747219.

It is an arithmetic number, because the mean of its divisors is an integer number (9480382584).

Almost surely, 2^56865864129 is an apocalyptic number.

It is an amenable number.

56865864129 is a deficient number, since it is larger than the sum of its proper divisors (18977196543).

56865864129 is a wasteful number, since it uses less digits than its factorization.

56865864129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477127.

The product of its digits is 24883200, while the sum is 60.

The spelling of 56865864129 in words is "fifty-six billion, eight hundred sixty-five million, eight hundred sixty-four thousand, one hundred twenty-nine".