321297552952 has 64 divisors (see below), whose sum is σ = 687074918400. Its totient is φ = 139959621120.

The previous prime is 321297552949. The next prime is 321297552971. The reversal of 321297552952 is 259255792123.

It is a self number, because there is not a number n which added to its sum of digits gives 321297552952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559752 + ... + 1753687.

It is an arithmetic number, because the mean of its divisors is an integer number (10735545600).

Almost surely, 2^321297552952 is an apocalyptic number.

It is an amenable number.

321297552952 is an abundant number, since it is smaller than the sum of its proper divisors (365777365448).

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

321297552952 is a wasteful number, since it uses less digits than its factorization.

321297552952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313516 (or 3313512 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 52.

The spelling of 321297552952 in words is "three hundred twenty-one billion, two hundred ninety-seven million, five hundred fifty-two thousand, nine hundred fifty-two".