320864468736 has 108 divisors (see below), whose sum is σ = 993390781992. Its totient is φ = 91675551744.

The previous prime is 320864468719. The next prime is 320864468801. The reversal of 320864468736 is 637864468023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4225555 + ... + 4300818.

Almost surely, 2^320864468736 is an apocalyptic number.

It is an amenable number.

320864468736 is an abundant number, since it is smaller than the sum of its proper divisors (672526313256).

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

320864468736 is an equidigital number, since it uses as much as digits as its factorization.

320864468736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8526406 (or 8526385 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 57.

The spelling of 320864468736 in words is "three hundred twenty billion, eight hundred sixty-four million, four hundred sixty-eight thousand, seven hundred thirty-six".