328956305972 has 24 divisors (see below), whose sum is σ = 692539592640. Its totient is φ = 133561206720.

The previous prime is 328956305969. The next prime is 328956305981. The reversal of 328956305972 is 279503659823.

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, 309168929 + ... + 309169992.

It is an arithmetic number, because the mean of its divisors is an integer number (28855816360).

Almost surely, 2^328956305972 is an apocalyptic number.

It is an amenable number.

328956305972 is an abundant number, since it is smaller than the sum of its proper divisors (363583286668).

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

328956305972 is a wasteful number, since it uses less digits than its factorization.

328956305972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618338951 (or 618338949 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 59.

The spelling of 328956305972 in words is "three hundred twenty-eight billion, nine hundred fifty-six million, three hundred five thousand, nine hundred seventy-two".