327981888444 has 96 divisors (see below), whose sum is σ = 901133162496. Its totient is φ = 90903536640.

The previous prime is 327981888419. The next prime is 327981888467. The reversal of 327981888444 is 444888189723.

It is a super-2 number, since 2×327981888444² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 78534 + ... + 813714.

It is an arithmetic number, because the mean of its divisors is an integer number (9386803776).

Almost surely, 2^327981888444 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 327981888444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450566581248).

327981888444 is an abundant number, since it is smaller than the sum of its proper divisors (573151274052).

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

327981888444 is a wasteful number, since it uses less digits than its factorization.

327981888444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735355 (or 735353 counting only the distinct ones).

The product of its digits is 99090432, while the sum is 66.

The spelling of 327981888444 in words is "three hundred twenty-seven billion, nine hundred eighty-one million, eight hundred eighty-eight thousand, four hundred forty-four".