315569985385 has 8 divisors (see below), whose sum is σ = 381225486600. Its totient is φ = 250761652224.

The previous prime is 315569985373. The next prime is 315569985391. The reversal of 315569985385 is 583589965513.

It can be written as a sum of positive squares in 4 ways, for example, as 6251590489 + 309318394896 = 79067^2 + 556164^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 315569985385 - 2²⁵ = 315536430953 is a prime.

It is a super-2 number, since 2×315569985385² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 315569985385.

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, 211791192 + ... + 211792681.

It is an arithmetic number, because the mean of its divisors is an integer number (47653185825).

Almost surely, 2^315569985385 is an apocalyptic number.

It is an amenable number.

315569985385 is a deficient number, since it is larger than the sum of its proper divisors (65655501215).

315569985385 is a wasteful number, since it uses less digits than its factorization.

315569985385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423584027.

The product of its digits is 174960000, while the sum is 67.

The spelling of 315569985385 in words is "three hundred fifteen billion, five hundred sixty-nine million, nine hundred eighty-five thousand, three hundred eighty-five".