56856369959 has 8 divisors (see below), whose sum is σ = 57908392752. Its totient is φ = 55811730240.

The previous prime is 56856369931. The next prime is 56856369961. The reversal of 56856369959 is 95996365865.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56856369959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56856369892 and 56856369901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56856369929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830224 + ... + 1861029.

It is an arithmetic number, because the mean of its divisors is an integer number (7238549094).

Almost surely, 2^56856369959 is an apocalyptic number.

56856369959 is a deficient number, since it is larger than the sum of its proper divisors (1052022793).

56856369959 is a wasteful number, since it uses less digits than its factorization.

56856369959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691537.

The product of its digits is 472392000, while the sum is 71.

The spelling of 56856369959 in words is "fifty-six billion, eight hundred fifty-six million, three hundred sixty-nine thousand, nine hundred fifty-nine".