328520872706 has 48 divisors (see below), whose sum is σ = 563971163112. Its totient is φ = 142182942720.

The previous prime is 328520872663. The next prime is 328520872709. The reversal of 328520872706 is 607278025823.

It can be written as a sum of positive squares in 12 ways, for example, as 200565144025 + 127955728681 = 447845^2 + 357709^2 .

It is not an unprimeable number, because it can be changed into a prime (328520872709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34896056 + ... + 34905468.

Almost surely, 2^328520872706 is an apocalyptic number.

328520872706 is a deficient number, since it is larger than the sum of its proper divisors (235450290406).

328520872706 is a wasteful number, since it uses less digits than its factorization.

328520872706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007 (or 9726 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 328520872706 in words is "three hundred twenty-eight billion, five hundred twenty million, eight hundred seventy-two thousand, seven hundred six".