20328315875 has 32 divisors (see below), whose sum is σ = 29929316352. Its totient is φ = 13489740000.

The previous prime is 20328315853. The next prime is 20328315911. The reversal of 20328315875 is 57851382302.

It is not a de Polignac number, because 20328315875 - 2²⁸ = 20059880419 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347591 + ... + 401840.

It is an arithmetic number, because the mean of its divisors is an integer number (935291136).

Almost surely, 2^20328315875 is an apocalyptic number.

20328315875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20328315875 is a deficient number, since it is larger than the sum of its proper divisors (9601000477).

20328315875 is an equidigital number, since it uses as much as digits as its factorization.

20328315875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749484 (or 749474 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 20328315875 in words is "twenty billion, three hundred twenty-eight million, three hundred fifteen thousand, eight hundred seventy-five".