7720707264 has 28 divisors (see below), whose sum is σ = 20427705144. Its totient is φ = 2573569024.

The previous prime is 7720707217. The next prime is 7720707283. The reversal of 7720707264 is 4627070277.

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, 20105817 + ... + 20106200.

It is an arithmetic number, because the mean of its divisors is an integer number (729560898).

Almost surely, 2^7720707264 is an apocalyptic number.

It is an amenable number.

7720707264 is an abundant number, since it is smaller than the sum of its proper divisors (12706997880).

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

7720707264 is a wasteful number, since it uses less digits than its factorization.

7720707264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40212032 (or 40212022 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 42.

The square root of 7720707264 is about 87867.5552408282. Note that the first 3 decimals coincide. The cubic root of 7720707264 is about 1976.4493779270.

The spelling of 7720707264 in words is "seven billion, seven hundred twenty million, seven hundred seven thousand, two hundred sixty-four".