315997218895 has 8 divisors (see below), whose sum is σ = 379313035920. Its totient is φ = 252720192960.

The previous prime is 315997218869. The next prime is 315997218923. The reversal of 315997218895 is 598812799513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315997218895 - 2⁷ = 315997218767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315997218895.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9679846 + ... + 9712435.

It is an arithmetic number, because the mean of its divisors is an integer number (47414129490).

Almost surely, 2^315997218895 is an apocalyptic number.

315997218895 is a deficient number, since it is larger than the sum of its proper divisors (63315817025).

315997218895 is a wasteful number, since it uses less digits than its factorization.

315997218895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19395545.

The product of its digits is 48988800, while the sum is 67.

The spelling of 315997218895 in words is "three hundred fifteen billion, nine hundred ninety-seven million, two hundred eighteen thousand, eight hundred ninety-five".