531161407026 has 12 divisors (see below), whose sum is σ = 1150849715262. Its totient is φ = 177053802336.

The previous prime is 531161407019. The next prime is 531161407039. The reversal of 531161407026 is 620704161135.

531161407026 is a `hidden beast` number, since 5 + 3 + 11 + 614 + 0 + 7 + 0 + 26 = 666.

It can be written as a sum of positive squares in only one way, i.e., 446538015225 + 84623391801 = 668235^2 + 290901^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14754483511 + ... + 14754483546.

Almost surely, 2^531161407026 is an apocalyptic number.

531161407026 is an abundant number, since it is smaller than the sum of its proper divisors (619688308236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531161407026 is a wasteful number, since it uses less digits than its factorization.

531161407026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29508967065 (or 29508967062 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 531161407026 in words is "five hundred thirty-one billion, one hundred sixty-one million, four hundred seven thousand, twenty-six".