315785489880 has 128 divisors (see below), whose sum is σ = 1085710003200. Its totient is φ = 71978414592.

The previous prime is 315785489869. The next prime is 315785489897. The reversal of 315785489880 is 88984587513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222027 + ... + 825146.

It is an arithmetic number, because the mean of its divisors is an integer number (8482109400).

Almost surely, 2^315785489880 is an apocalyptic number.

315785489880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315785489880 is an abundant number, since it is smaller than the sum of its proper divisors (769924513320).

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

315785489880 is a wasteful number, since it uses less digits than its factorization.

315785489880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047553 (or 1047549 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 66.

The spelling of 315785489880 in words is "three hundred fifteen billion, seven hundred eighty-five million, four hundred eighty-nine thousand, eight hundred eighty".