9156436540 has 24 divisors (see below), whose sum is σ = 19471919040. Its totient is φ = 3616212288.

The previous prime is 9156436529. The next prime is 9156436559. The reversal of 9156436540 is 456346519.

It is a super-2 number, since 2×9156436540² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 2896027 + ... + 2899186.

It is an arithmetic number, because the mean of its divisors is an integer number (811329960).

Almost surely, 2^9156436540 is an apocalyptic number.

It is an amenable number.

9156436540 is an abundant number, since it is smaller than the sum of its proper divisors (10315482500).

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

9156436540 is a wasteful number, since it uses less digits than its factorization.

9156436540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795301 (or 5795299 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 9156436540 is about 95689.2707674168. The cubic root of 9156436540 is about 2092.0665548108.

The spelling of 9156436540 in words is "nine billion, one hundred fifty-six million, four hundred thirty-six thousand, five hundred forty".