7313445664 has 24 divisors (see below), whose sum is σ = 16455253248. Its totient is φ = 3134333760.

The previous prime is 7313445647. The next prime is 7313445691. The reversal of 7313445664 is 4665443137.

It is a self number, because there is not a number n which added to its sum of digits gives 7313445664.

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, 16324432 + ... + 16324879.

It is an arithmetic number, because the mean of its divisors is an integer number (685635552).

Almost surely, 2^7313445664 is an apocalyptic number.

It is an amenable number.

7313445664 is an abundant number, since it is smaller than the sum of its proper divisors (9141807584).

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

7313445664 is a wasteful number, since it uses less digits than its factorization.

7313445664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32649328 (or 32649320 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The square root of 7313445664 is about 85518.6860516460. The cubic root of 7313445664 is about 1941.0676859262.

The spelling of 7313445664 in words is "seven billion, three hundred thirteen million, four hundred forty-five thousand, six hundred sixty-four".