56783900679 has 16 divisors (see below), whose sum is σ = 83758074624. Its totient is φ = 33929772800.

The previous prime is 56783900659. The next prime is 56783900711. The reversal of 56783900679 is 97600938765.

It is not a de Polignac number, because 56783900679 - 2²⁰ = 56782852103 is a prime.

It is a super-2 number, since 2×56783900679² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56783900609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12115434 + ... + 12120119.

It is an arithmetic number, because the mean of its divisors is an integer number (5234879664).

Almost surely, 2^56783900679 is an apocalyptic number.

56783900679 is a deficient number, since it is larger than the sum of its proper divisors (26974173945).

56783900679 is a wasteful number, since it uses less digits than its factorization.

56783900679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24235638.

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 56783900679 in words is "fifty-six billion, seven hundred eighty-three million, nine hundred thousand, six hundred seventy-nine".