326321680313172 has 24 divisors (see below), whose sum is σ = 779988406603392. Its totient is φ = 106120871646400.

The previous prime is 326321680313129. The next prime is 326321680313197. The reversal of 326321680313172 is 271313086123623.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331627723404 + ... + 331627724387.

It is an arithmetic number, because the mean of its divisors is an integer number (32499516941808).

Almost surely, 2^{326321680313172} is an apocalyptic number.

It is an amenable number.

326321680313172 is an abundant number, since it is smaller than the sum of its proper divisors (453666726290220).

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

326321680313172 is a wasteful number, since it uses less digits than its factorization.

326321680313172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663255447839 (or 663255447837 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 326321680313172 in words is "three hundred twenty-six trillion, three hundred twenty-one billion, six hundred eighty million, three hundred thirteen thousand, one hundred seventy-two".