18975822313 has 16 divisors (see below), whose sum is σ = 22364881920. Its totient is φ = 15764086800.

The previous prime is 18975822311. The next prime is 18975822373. The reversal of 18975822313 is 31322857981.

It is not a de Polignac number, because 18975822313 - 2¹ = 18975822311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18975822311) 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, 294243 + ... + 352888.

It is an arithmetic number, because the mean of its divisors is an integer number (1397805120).

Almost surely, 2^18975822313 is an apocalyptic number.

It is an amenable number.

18975822313 is a deficient number, since it is larger than the sum of its proper divisors (3389059607).

18975822313 is an equidigital number, since it uses as much as digits as its factorization.

18975822313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647268.

The product of its digits is 725760, while the sum is 49.

The spelling of 18975822313 in words is "eighteen billion, nine hundred seventy-five million, eight hundred twenty-two thousand, three hundred thirteen".