315716275521 has 6 divisors (see below), whose sum is σ = 456034620210. Its totient is φ = 210477517008.

The previous prime is 315716275513. The next prime is 315716275541. The reversal of 315716275521 is 125572617513.

315716275521 is a `hidden beast` number, since 3 + 1 + 5 + 71 + 6 + 27 + 552 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 259136993025 + 56579282496 = 509055^2 + 237864^2 .

It is not a de Polignac number, because 315716275521 - 2³ = 315716275513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315716275541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17539793076 + ... + 17539793093.

It is an arithmetic number, because the mean of its divisors is an integer number (76005770035).

Almost surely, 2^315716275521 is an apocalyptic number.

It is an amenable number.

315716275521 is a deficient number, since it is larger than the sum of its proper divisors (140318344689).

315716275521 is a wasteful number, since it uses less digits than its factorization.

315716275521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35079586175 (or 35079586172 counting only the distinct ones).

The product of its digits is 441000, while the sum is 45.

The spelling of 315716275521 in words is "three hundred fifteen billion, seven hundred sixteen million, two hundred seventy-five thousand, five hundred twenty-one".