328588817826361 has 3 divisors (see below), whose sum is σ = 328588835953381. Its totient is φ = 328588799699342.

The previous prime is 328588817826337. The next prime is 328588817826403. The reversal of 328588817826361 is 163628718885823.

The square root of 328588817826361 is 18127019.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 328588817826361 - 2²⁵ = 328588784271929 is a prime.

It is a super-2 number, since 2×328588817826361² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328588817826301) 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 2 ways as a sum of consecutive naturals, for example, 9063510 + ... + 27190528.

Almost surely, 2^{328588817826361} is an apocalyptic number.

328588817826361 is the 18127019-th square number.

328588817826361 is the 9063510-th centered octagonal number.

It is an amenable number.

328588817826361 is a deficient number, since it is larger than the sum of its proper divisors (18127020).

328588817826361 is an frugal number, since it uses more digits than its factorization.

328588817826361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36254038 (or 18127019 counting only the distinct ones).

The product of its digits is 1486356480, while the sum is 76.

The spelling of 328588817826361 in words is "three hundred twenty-eight trillion, five hundred eighty-eight billion, eight hundred seventeen million, eight hundred twenty-six thousand, three hundred sixty-one".