8791313140 has 24 divisors (see below), whose sum is σ = 18468162720. Its totient is φ = 3515305248.

The previous prime is 8791313137. The next prime is 8791313177. The reversal of 8791313140 is 413131978.

It is a self number, because there is not a number n which added to its sum of digits gives 8791313140.

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, 16002 + ... + 133561.

It is an arithmetic number, because the mean of its divisors is an integer number (769506780).

Almost surely, 2^8791313140 is an apocalyptic number.

It is an amenable number.

8791313140 is an abundant number, since it is smaller than the sum of its proper divisors (9676849580).

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

8791313140 is a wasteful number, since it uses less digits than its factorization.

8791313140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152511 (or 152509 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 8791313140 is about 93762.0026449947. The cubic root of 8791313140 is about 2063.8806684034.

The spelling of 8791313140 in words is "eight billion, seven hundred ninety-one million, three hundred thirteen thousand, one hundred forty".