19885361875 has 20 divisors (see below), whose sum is σ = 24952044040. Its totient is φ = 15842160000.

The previous prime is 19885361869. The next prime is 19885361957. The reversal of 19885361875 is 57816358891.

It is not a de Polignac number, because 19885361875 - 2⁷ = 19885361747 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84616 + ... + 216634.

It is an arithmetic number, because the mean of its divisors is an integer number (1247602202).

Almost surely, 2^19885361875 is an apocalyptic number.

19885361875 is a deficient number, since it is larger than the sum of its proper divisors (5066682165).

19885361875 is an equidigital number, since it uses as much as digits as its factorization.

19885361875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132280 (or 132265 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 61.

The spelling of 19885361875 in words is "nineteen billion, eight hundred eighty-five million, three hundred sixty-one thousand, eight hundred seventy-five".