322391652128 has 162 divisors, whose sum is σ = 800223751089. Its totient is φ = 127423924992.

The previous prime is 322391652067. The next prime is 322391652139. The reversal of 322391652128 is 821256193223.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 275654400784 + 46737251344 = 525028^2 + 216188^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=401492.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 292285625 + ... + 292286727.

Almost surely, 2^322391652128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322391652128

322391652128 is an abundant number, since it is smaller than the sum of its proper divisors (477832098961).

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

322391652128 is an equidigital number, since it uses as much as digits as its factorization.

322391652128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 1125 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The spelling of 322391652128 in words is "three hundred twenty-two billion, three hundred ninety-one million, six hundred fifty-two thousand, one hundred twenty-eight".