315812491808 has 24 divisors (see below), whose sum is σ = 678279102480. Its totient is φ = 143551132480.

The previous prime is 315812491807. The next prime is 315812491811. The reversal of 315812491808 is 808194218513.

It is not an unprimeable number, because it can be changed into a prime (315812491801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448596938 + ... + 448597641.

It is an arithmetic number, because the mean of its divisors is an integer number (28261629270).

Almost surely, 2^315812491808 is an apocalyptic number.

It is an amenable number.

315812491808 is an abundant number, since it is smaller than the sum of its proper divisors (362466610672).

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

315812491808 is a wasteful number, since it uses less digits than its factorization.

315812491808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897194600 (or 897194592 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 50.

The spelling of 315812491808 in words is "three hundred fifteen billion, eight hundred twelve million, four hundred ninety-one thousand, eight hundred eight".