328013805985 has 16 divisors (see below), whose sum is σ = 394213083264. Its totient is φ = 262013565312.

The previous prime is 328013805983. The next prime is 328013806019. The reversal of 328013805985 is 589508310823.

It is a cyclic number.

It is not a de Polignac number, because 328013805985 - 2¹ = 328013805983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328013805983) 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, 16462389 + ... + 16482301.

It is an arithmetic number, because the mean of its divisors is an integer number (24638317704).

Almost surely, 2^328013805985 is an apocalyptic number.

It is an amenable number.

328013805985 is a deficient number, since it is larger than the sum of its proper divisors (66199277279).

328013805985 is a wasteful number, since it uses less digits than its factorization.

328013805985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24744.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 328013805985 in words is "three hundred twenty-eight billion, thirteen million, eight hundred five thousand, nine hundred eighty-five".