328931184605 has 16 divisors (see below), whose sum is σ = 395859363840. Its totient is φ = 262384735872.

The previous prime is 328931184601. The next prime is 328931184613. The reversal of 328931184605 is 506481139823.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 328931184605 - 2² = 328931184601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328931184601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2388332 + ... + 2522298.

It is an arithmetic number, because the mean of its divisors is an integer number (24741210240).

Almost surely, 2^328931184605 is an apocalyptic number.

It is an amenable number.

328931184605 is a deficient number, since it is larger than the sum of its proper divisors (66928179235).

328931184605 is a wasteful number, since it uses less digits than its factorization.

328931184605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135388.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 328931184605 in words is "three hundred twenty-eight billion, nine hundred thirty-one million, one hundred eighty-four thousand, six hundred five".