328563495820 has 48 divisors (see below), whose sum is σ = 834937830720. Its totient is φ = 106023849984.

The previous prime is 328563495781. The next prime is 328563495829. The reversal of 328563495820 is 28594365823.

It is not an unprimeable number, because it can be changed into a prime (328563495829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69023565 + ... + 69028324.

It is an arithmetic number, because the mean of its divisors is an integer number (17394538140).

Almost surely, 2^328563495820 is an apocalyptic number.

It is an amenable number.

328563495820 is an abundant number, since it is smaller than the sum of its proper divisors (506374334900).

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

328563495820 is a wasteful number, since it uses less digits than its factorization.

328563495820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138051922 (or 138051920 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 328563495820 in words is "three hundred twenty-eight billion, five hundred sixty-three million, four hundred ninety-five thousand, eight hundred twenty".