328684560864 has 192 divisors, whose sum is σ = 967497447168. Its totient is φ = 96855449600.

The previous prime is 328684560851. The next prime is 328684560913. The reversal of 328684560864 is 468065486823.

It is a junction number, because it is equal to n+sod(n) for n = 328684560798 and 328684560807.

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, 6298399 + ... + 6350369.

It is an arithmetic number, because the mean of its divisors is an integer number (5039049204).

Almost surely, 2^328684560864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328684560864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483748723584).

328684560864 is an abundant number, since it is smaller than the sum of its proper divisors (638812886304).

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

328684560864 is a wasteful number, since it uses less digits than its factorization.

328684560864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52161 (or 52153 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 60.

The spelling of 328684560864 in words is "three hundred twenty-eight billion, six hundred eighty-four million, five hundred sixty thousand, eight hundred sixty-four".