328091866872 has 96 divisors (see below), whose sum is σ = 1030371216000. Its totient is φ = 85218661440.

The previous prime is 328091866859. The next prime is 328091866901. The reversal of 328091866872 is 278668190823.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8049622 + ... + 8090277.

It is an arithmetic number, because the mean of its divisors is an integer number (10733033500).

Almost surely, 2^328091866872 is an apocalyptic number.

It is an amenable number.

328091866872 is an abundant number, since it is smaller than the sum of its proper divisors (702279349128).

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

328091866872 is a wasteful number, since it uses less digits than its factorization.

328091866872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16139937 (or 16139922 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 328091866872 in words is "three hundred twenty-eight billion, ninety-one million, eight hundred sixty-six thousand, eight hundred seventy-two".