315681396528 has 40 divisors (see below), whose sum is σ = 816197456448. Its totient is φ = 105138463552.

The previous prime is 315681396497. The next prime is 315681396529. The reversal of 315681396528 is 825693186513.

It is a super-2 number, since 2×315681396528² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (315681396529) 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, 2713326 + ... + 2827277.

Almost surely, 2^315681396528 is an apocalyptic number.

It is an amenable number.

315681396528 is an abundant number, since it is smaller than the sum of its proper divisors (500516059920).

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

315681396528 is a wasteful number, since it uses less digits than its factorization.

315681396528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541801 (or 5541795 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 57.

The spelling of 315681396528 in words is "three hundred fifteen billion, six hundred eighty-one million, three hundred ninety-six thousand, five hundred twenty-eight".