320864059488 has 72 divisors (see below), whose sum is σ = 979781338872. Its totient is φ = 91675444224.

The previous prime is 320864059469. The next prime is 320864059493. The reversal of 320864059488 is 884950468023.

It is a happy number.

It is a super-2 number, since 2×320864059488² (a number of 24 digits) contains 22 as substring.

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, 34100745 + ... + 34110152.

It is an arithmetic number, because the mean of its divisors is an integer number (13608074151).

Almost surely, 2^320864059488 is an apocalyptic number.

It is an amenable number.

320864059488 is an abundant number, since it is smaller than the sum of its proper divisors (658917279384).

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

320864059488 is a wasteful number, since it uses less digits than its factorization.

320864059488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68210924 (or 68210909 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 320864059488 in words is "three hundred twenty billion, eight hundred sixty-four million, fifty-nine thousand, four hundred eighty-eight".