328993213920 has 192 divisors, whose sum is σ = 1222581620736. Its totient is φ = 72772669440.

The previous prime is 328993213891. The next prime is 328993213931. The reversal of 328993213920 is 29312399823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1475109 + ... + 1683428.

It is an arithmetic number, because the mean of its divisors is an integer number (6367612608).

Almost surely, 2^328993213920 is an apocalyptic number.

328993213920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328993213920 is an abundant number, since it is smaller than the sum of its proper divisors (893588406816).

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

328993213920 is a wasteful number, since it uses less digits than its factorization.

328993213920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3158593 (or 3158585 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 328993213920 in words is "three hundred twenty-eight billion, nine hundred ninety-three million, two hundred thirteen thousand, nine hundred twenty".