328783574020 has 36 divisors (see below), whose sum is σ = 758919445452. Its totient is φ = 119557662400.

The previous prime is 328783574003. The next prime is 328783574057. The reversal of 328783574020 is 20475387823.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 249224602176 + 79558971844 = 499224^2 + 282062^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67928071 + ... + 67932910.

It is an arithmetic number, because the mean of its divisors is an integer number (21081095707).

Almost surely, 2^328783574020 is an apocalyptic number.

It is an amenable number.

328783574020 is an abundant number, since it is smaller than the sum of its proper divisors (430135871432).

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

328783574020 is a wasteful number, since it uses less digits than its factorization.

328783574020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135861012 (or 135860999 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 328783574020 in words is "three hundred twenty-eight billion, seven hundred eighty-three million, five hundred seventy-four thousand, twenty".