315717145730 has 16 divisors (see below), whose sum is σ = 649475271360. Its totient is φ = 108245878512.

The previous prime is 315717145727. The next prime is 315717145759. The reversal of 315717145730 is 37541717513.

It is a super-2 number, since 2×315717145730² (a number of 24 digits) contains 22 as substring.

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, 2255122400 + ... + 2255122539.

It is an arithmetic number, because the mean of its divisors is an integer number (40592204460).

Almost surely, 2^315717145730 is an apocalyptic number.

315717145730 is an abundant number, since it is smaller than the sum of its proper divisors (333758125630).

315717145730 is a wasteful number, since it uses less digits than its factorization.

315717145730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510244953.

The product of its (nonzero) digits is 308700, while the sum is 44.

The spelling of 315717145730 in words is "three hundred fifteen billion, seven hundred seventeen million, one hundred forty-five thousand, seven hundred thirty".