328438859639 has 16 divisors (see below), whose sum is σ = 358660984320. Its totient is φ = 298277604000.

The previous prime is 328438859587. The next prime is 328438859659. The reversal of 328438859639 is 936958834823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328438859639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328438859659) 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, 77624654 + ... + 77628884.

It is an arithmetic number, because the mean of its divisors is an integer number (22416311520).

Almost surely, 2^328438859639 is an apocalyptic number.

328438859639 is a deficient number, since it is larger than the sum of its proper divisors (30222124681).

328438859639 is a wasteful number, since it uses less digits than its factorization.

328438859639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9742.

The product of its digits is 268738560, while the sum is 68.

The spelling of 328438859639 in words is "three hundred twenty-eight billion, four hundred thirty-eight million, eight hundred fifty-nine thousand, six hundred thirty-nine".