328310618430845 has 4 divisors (see below), whose sum is σ = 393972742117020. Its totient is φ = 262648494744672.

The previous prime is 328310618430799. The next prime is 328310618430853. The reversal of 328310618430845 is 548034816013823.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 225128478335524 + 103182140095321 = 15004282^2 + 10157861^2 .

It is a cyclic number.

It is not a de Polignac number, because 328310618430845 - 2³⁸ = 328035740523901 is a prime.

It is a super-2 number, since 2×328310618430845² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32831061843080 + ... + 32831061843089.

It is an arithmetic number, because the mean of its divisors is an integer number (98493185529255).

Almost surely, 2^{328310618430845} is an apocalyptic number.

It is an amenable number.

328310618430845 is a deficient number, since it is larger than the sum of its proper divisors (65662123686175).

328310618430845 is an equidigital number, since it uses as much as digits as its factorization.

328310618430845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65662123686174.

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 328310618430845 in words is "three hundred twenty-eight trillion, three hundred ten billion, six hundred eighteen million, four hundred thirty thousand, eight hundred forty-five".