9159275640 has 128 divisors (see below), whose sum is σ = 29587680000. Its totient is φ = 2259806208.

The previous prime is 9159275561. The next prime is 9159275659. The reversal of 9159275640 is 465729519.

It is a self number, because there is not a number n which added to its sum of digits gives 9159275640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82311 + ... + 158409.

It is an arithmetic number, because the mean of its divisors is an integer number (231153750).

Almost surely, 2^9159275640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9159275640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14793840000).

9159275640 is an abundant number, since it is smaller than the sum of its proper divisors (20428404360).

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

9159275640 is a wasteful number, since it uses less digits than its factorization.

9159275640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76189 (or 76185 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 48.

The square root of 9159275640 is about 95704.1046141700. The cubic root of 9159275640 is about 2092.2827587291.

The spelling of 9159275640 in words is "nine billion, one hundred fifty-nine million, two hundred seventy-five thousand, six hundred forty".