328081346872 has 8 divisors (see below), whose sum is σ = 615152525400. Its totient is φ = 164040673432.

The previous prime is 328081346861. The next prime is 328081346881. The reversal of 328081346872 is 278643180823.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20505084172 + ... + 20505084187.

It is an arithmetic number, because the mean of its divisors is an integer number (76894065675).

Almost surely, 2^328081346872 is an apocalyptic number.

It is an amenable number.

328081346872 is a deficient number, since it is larger than the sum of its proper divisors (287071178528).

328081346872 is a wasteful number, since it uses less digits than its factorization.

328081346872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41010168365 (or 41010168361 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 328081346872 in words is "three hundred twenty-eight billion, eighty-one million, three hundred forty-six thousand, eight hundred seventy-two".