318877352138 has 24 divisors (see below), whose sum is σ = 500602386816. Its totient is φ = 152181698400.

The previous prime is 318877352063. The next prime is 318877352149. The reversal of 318877352138 is 831253778813.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152168 + ... + 812963.

It is an arithmetic number, because the mean of its divisors is an integer number (20858432784).

Almost surely, 2^318877352138 is an apocalyptic number.

318877352138 is a deficient number, since it is larger than the sum of its proper divisors (181725034678).

318877352138 is an equidigital number, since it uses as much as digits as its factorization.

318877352138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965310 (or 965237 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The spelling of 318877352138 in words is "three hundred eighteen billion, eight hundred seventy-seven million, three hundred fifty-two thousand, one hundred thirty-eight".