328806972650 has 48 divisors (see below), whose sum is σ = 658687388184. Its totient is φ = 121394273280.

The previous prime is 328806972643. The next prime is 328806972667. The reversal of 328806972650 is 56279608823.

It can be written as a sum of positive squares in 12 ways, for example, as 15093842449 + 313713130201 = 122857^2 + 560101^2 .

It is a super-2 number, since 2×328806972650² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10525454 + ... + 10556646.

Almost surely, 2^328806972650 is an apocalyptic number.

328806972650 is an abundant number, since it is smaller than the sum of its proper divisors (329880415534).

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

328806972650 is a wasteful number, since it uses less digits than its factorization.

328806972650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47435 (or 47430 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 328806972650 in words is "three hundred twenty-eight billion, eight hundred six million, nine hundred seventy-two thousand, six hundred fifty".