318012942656 has 14 divisors (see below), whose sum is σ = 631056933210. Its totient is φ = 159006471296.

The previous prime is 318012942641. The next prime is 318012942707. The reversal of 318012942656 is 656249210813.

It can be written as a sum of positive squares in only one way, i.e., 317464633600 + 548309056 = 563440^2 + 23416^2 .

It is a super-2 number, since 2×318012942656² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 318012942656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2484476051 + ... + 2484476178.

Almost surely, 2^318012942656 is an apocalyptic number.

It is an amenable number.

318012942656 is a deficient number, since it is larger than the sum of its proper divisors (313043990554).

318012942656 is an equidigital number, since it uses as much as digits as its factorization.

318012942656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968952241 (or 4968952231 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 318012942656 in words is "three hundred eighteen billion, twelve million, nine hundred forty-two thousand, six hundred fifty-six".