315897430492 has 18 divisors (see below), whose sum is σ = 631800809192. Its totient is φ = 135383338464.

The previous prime is 315897430463. The next prime is 315897430501. The reversal of 315897430492 is 294034798513.

It is a congruent number.

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, 2920968 + ... + 3027184.

Almost surely, 2^315897430492 is an apocalyptic number.

It is an amenable number.

315897430492 is an abundant number, since it is smaller than the sum of its proper divisors (315903378700).

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

315897430492 is an frugal number, since it uses more digits than its factorization.

315897430492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212445 (or 106226 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 315897430492 in words is "three hundred fifteen billion, eight hundred ninety-seven million, four hundred thirty thousand, four hundred ninety-two".