9131367864 has 16 divisors (see below), whose sum is σ = 22828419720. Its totient is φ = 3043789280.

The previous prime is 9131367857. The next prime is 9131367877. The reversal of 9131367864 is 4687631319.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190236807 + ... + 190236854.

Almost surely, 2^9131367864 is an apocalyptic number.

It is an amenable number.

9131367864 is an abundant number, since it is smaller than the sum of its proper divisors (13697051856).

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

9131367864 is a wasteful number, since it uses less digits than its factorization.

9131367864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380473670 (or 380473666 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 9131367864 is about 95558.1909832956. The cubic root of 9131367864 is about 2090.1555758215.

The spelling of 9131367864 in words is "nine billion, one hundred thirty-one million, three hundred sixty-seven thousand, eight hundred sixty-four".