315657437028 has 24 divisors (see below), whose sum is σ = 736582361088. Its totient is φ = 105212239776.

The previous prime is 315657437021. The next prime is 315657437041. The reversal of 315657437028 is 820734756513.

It is not an unprimeable number, because it can be changed into a prime (315657437021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671076 + ... + 1040027.

It is an arithmetic number, because the mean of its divisors is an integer number (30690931712).

Almost surely, 2^315657437028 is an apocalyptic number.

It is an amenable number.

315657437028 is an abundant number, since it is smaller than the sum of its proper divisors (420924924060).

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

315657437028 is a wasteful number, since it uses less digits than its factorization.

315657437028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726483 (or 1726481 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 315657437028 in words is "three hundred fifteen billion, six hundred fifty-seven million, four hundred thirty-seven thousand, twenty-eight".