328963369840 has 160 divisors (see below), whose sum is σ = 892690185600. Its totient is φ = 112692787200.

The previous prime is 328963369759. The next prime is 328963369873. The reversal of 328963369840 is 48963369823.

It is a happy number.

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, 37890300 + ... + 37898980.

It is an arithmetic number, because the mean of its divisors is an integer number (5579313660).

Almost surely, 2^328963369840 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 328963369840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446345092800).

328963369840 is an abundant number, since it is smaller than the sum of its proper divisors (563726815760).

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

328963369840 is a wasteful number, since it uses less digits than its factorization.

328963369840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096 (or 10076 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 61.

The spelling of 328963369840 in words is "three hundred twenty-eight billion, nine hundred sixty-three million, three hundred sixty-nine thousand, eight hundred forty".