315888914985 has 16 divisors (see below), whose sum is σ = 577625444736. Its totient is φ = 144406361088.

The previous prime is 315888914947. The next prime is 315888914987. The reversal of 315888914985 is 589419888513.

It is not a de Polignac number, because 315888914985 - 2¹³ = 315888906793 is a prime.

It is a super-2 number, since 2×315888914985² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (315888914987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504232824 + ... + 1504233033.

It is an arithmetic number, because the mean of its divisors is an integer number (36101590296).

Almost surely, 2^315888914985 is an apocalyptic number.

315888914985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315888914985 is a deficient number, since it is larger than the sum of its proper divisors (261736529751).

315888914985 is a wasteful number, since it uses less digits than its factorization.

315888914985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008465872.

The product of its digits is 99532800, while the sum is 69.

The spelling of 315888914985 in words is "three hundred fifteen billion, eight hundred eighty-eight million, nine hundred fourteen thousand, nine hundred eighty-five".