318974623508 has 6 divisors (see below), whose sum is σ = 558205591146. Its totient is φ = 159487311752.

The previous prime is 318974623481. The next prime is 318974623511. The reversal of 318974623508 is 805326479813.

It can be written as a sum of positive squares in only one way, i.e., 318606060304 + 368563204 = 564452^2 + 19198^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39871827935 + ... + 39871827942.

It is an arithmetic number, because the mean of its divisors is an integer number (93034265191).

It is a 1-persistent number, because it is pandigital, but 2⋅318974623508 = 637949247016 is not.

Almost surely, 2^318974623508 is an apocalyptic number.

It is an amenable number.

318974623508 is a deficient number, since it is larger than the sum of its proper divisors (239230967638).

318974623508 is a wasteful number, since it uses less digits than its factorization.

318974623508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79743655881 (or 79743655879 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 318974623508 in words is "three hundred eighteen billion, nine hundred seventy-four million, six hundred twenty-three thousand, five hundred eight".