315421775672 has 64 divisors (see below), whose sum is σ = 643442676000. Its totient is φ = 144445856256.

The previous prime is 315421775663. The next prime is 315421775687. The reversal of 315421775672 is 276577124513.

It is a self number, because there is not a number n which added to its sum of digits gives 315421775672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704354 + ... + 1061582.

Almost surely, 2^315421775672 is an apocalyptic number.

It is an amenable number.

315421775672 is an abundant number, since it is smaller than the sum of its proper divisors (328020900328).

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

315421775672 is a wasteful number, since it uses less digits than its factorization.

315421775672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357448 (or 357444 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 50.

The spelling of 315421775672 in words is "three hundred fifteen billion, four hundred twenty-one million, seven hundred seventy-five thousand, six hundred seventy-two".