56722636799 has 4 divisors (see below), whose sum is σ = 56728176120. Its totient is φ = 56717097480.

The previous prime is 56722636721. The next prime is 56722636801. The reversal of 56722636799 is 99763622765.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56722636799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56722636099) 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, 2754272 + ... + 2774789.

It is an arithmetic number, because the mean of its divisors is an integer number (14182044030).

Almost surely, 2^56722636799 is an apocalyptic number.

56722636799 is a deficient number, since it is larger than the sum of its proper divisors (5539321).

56722636799 is a wasteful number, since it uses less digits than its factorization.

56722636799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539320.

The product of its digits is 51438240, while the sum is 62.

The spelling of 56722636799 in words is "fifty-six billion, seven hundred twenty-two million, six hundred thirty-six thousand, seven hundred ninety-nine".