18421148875 has 16 divisors (see below), whose sum is σ = 23030515872. Its totient is φ = 14710687200.

The previous prime is 18421148861. The next prime is 18421148923. The reversal of 18421148875 is 57884112481.

It is not a de Polignac number, because 18421148875 - 2¹⁹ = 18420624587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60504 + ... + 201253.

It is an arithmetic number, because the mean of its divisors is an integer number (1439407242).

Almost surely, 2^18421148875 is an apocalyptic number.

18421148875 is a deficient number, since it is larger than the sum of its proper divisors (4609366997).

18421148875 is an equidigital number, since it uses as much as digits as its factorization.

18421148875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262335 (or 262325 counting only the distinct ones).

The product of its digits is 573440, while the sum is 49.

The spelling of 18421148875 in words is "eighteen billion, four hundred twenty-one million, one hundred forty-eight thousand, eight hundred seventy-five".