327521668864 has 72 divisors (see below), whose sum is σ = 704755763712. Its totient is φ = 151013068800.

The previous prime is 327521668787. The next prime is 327521668883. The reversal of 327521668864 is 468866125723.

It is a junction number, because it is equal to n+sod(n) for n = 327521668799 and 327521668808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3322689 + ... + 3419839.

It is an arithmetic number, because the mean of its divisors is an integer number (9788274496).

Almost surely, 2^327521668864 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 327521668864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352377881856).

327521668864 is an abundant number, since it is smaller than the sum of its proper divisors (377234094848).

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

327521668864 is a wasteful number, since it uses less digits than its factorization.

327521668864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98193 (or 98179 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 58.

The spelling of 327521668864 in words is "three hundred twenty-seven billion, five hundred twenty-one million, six hundred sixty-eight thousand, eight hundred sixty-four".