318449913438 has 16 divisors (see below), whose sum is σ = 637001594496. Its totient is φ = 106133009880.

The previous prime is 318449913371. The next prime is 318449913469. The reversal of 318449913438 is 834319944813.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4199608 + ... + 4274763.

It is an arithmetic number, because the mean of its divisors is an integer number (39812599656).

Almost surely, 2^318449913438 is an apocalyptic number.

318449913438 is an abundant number, since it is smaller than the sum of its proper divisors (318551681058).

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

318449913438 is a wasteful number, since it uses less digits than its factorization.

318449913438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8480639.

The product of its digits is 8957952, while the sum is 57.

The spelling of 318449913438 in words is "three hundred eighteen billion, four hundred forty-nine million, nine hundred thirteen thousand, four hundred thirty-eight".