56856181679 has 12 divisors (see below), whose sum is σ = 62507786880. Its totient is φ = 51676706400.

The previous prime is 56856181667. The next prime is 56856181717. The reversal of 56856181679 is 97618165865.

It is not a de Polignac number, because 56856181679 - 2⁴ = 56856181663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56856181639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568562 + ... + 661040.

It is an arithmetic number, because the mean of its divisors is an integer number (5208982240).

Almost surely, 2^56856181679 is an apocalyptic number.

56856181679 is a deficient number, since it is larger than the sum of its proper divisors (5651605201).

56856181679 is a wasteful number, since it uses less digits than its factorization.

56856181679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97582 (or 97571 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 62.

The spelling of 56856181679 in words is "fifty-six billion, eight hundred fifty-six million, one hundred eighty-one thousand, six hundred seventy-nine".