315497511009 has 12 divisors (see below), whose sum is σ = 468035347156. Its totient is φ = 204647033952.

The previous prime is 315497510987. The next prime is 315497511041. The reversal of 315497511009 is 900115794513.

315497511009 is a `hidden beast` number, since 3 + 1 + 5 + 497 + 51 + 100 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 188380304784 + 127117206225 = 434028^2 + 356535^2 .

It is not a de Polignac number, because 315497511009 - 2¹⁷ = 315497379937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (315497511089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473719654 + ... + 473720319.

Almost surely, 2^315497511009 is an apocalyptic number.

It is an amenable number.

315497511009 is a deficient number, since it is larger than the sum of its proper divisors (152537836147).

315497511009 is a wasteful number, since it uses less digits than its factorization.

315497511009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947440016 (or 947440013 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The spelling of 315497511009 in words is "three hundred fifteen billion, four hundred ninety-seven million, five hundred eleven thousand, nine".