328245578431 has 4 divisors (see below), whose sum is σ = 332868755664. Its totient is φ = 323622401200.

The previous prime is 328245578417. The next prime is 328245578449. The reversal of 328245578431 is 134875542823.

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

It is a cyclic number.

It is not a de Polignac number, because 328245578431 - 2⁷ = 328245578303 is a prime.

It is a super-2 number, since 2×328245578431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328245576431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311588510 + ... + 2311588651.

It is an arithmetic number, because the mean of its divisors is an integer number (83217188916).

Almost surely, 2^328245578431 is an apocalyptic number.

328245578431 is a deficient number, since it is larger than the sum of its proper divisors (4623177233).

328245578431 is an equidigital number, since it uses as much as digits as its factorization.

328245578431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623177232.

The product of its digits is 6451200, while the sum is 52.

The spelling of 328245578431 in words is "three hundred twenty-eight billion, two hundred forty-five million, five hundred seventy-eight thousand, four hundred thirty-one".