7957387320 has 32 divisors (see below), whose sum is σ = 23872162320. Its totient is φ = 2121969920.

The previous prime is 7957387247. The next prime is 7957387357. The reversal of 7957387320 is 237837597.

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, 33155661 + ... + 33155900.

Almost surely, 2^7957387320 is an apocalyptic number.

It is an amenable number.

7957387320 is an abundant number, since it is smaller than the sum of its proper divisors (15914775000).

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

7957387320 is a wasteful number, since it uses less digits than its factorization.

7957387320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66311575 (or 66311571 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 51.

The square root of 7957387320 is about 89204.1889150952. The cubic root of 7957387320 is about 1996.4426196072.

The spelling of 7957387320 in words is "seven billion, nine hundred fifty-seven million, three hundred eighty-seven thousand, three hundred twenty".