318152392938 has 12 divisors (see below), whose sum is σ = 689330184738. Its totient is φ = 106050797640.

The previous prime is 318152392907. The next prime is 318152392973. The reversal of 318152392938 is 839293251813.

318152392938 is a `hidden beast` number, since 3 + 1 + 81 + 523 + 9 + 2 + 9 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 164289976929 + 153862416009 = 405327^2 + 392253^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8837566453 + ... + 8837566488.

Almost surely, 2^318152392938 is an apocalyptic number.

318152392938 is an abundant number, since it is smaller than the sum of its proper divisors (371177791800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

318152392938 is a wasteful number, since it uses less digits than its factorization.

318152392938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17675132949 (or 17675132946 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 318152392938 in words is "three hundred eighteen billion, one hundred fifty-two million, three hundred ninety-two thousand, nine hundred thirty-eight".