18182274412 has 24 divisors (see below), whose sum is σ = 32353830432. Its totient is φ = 8939011200.

The previous prime is 18182274361. The next prime is 18182274457. The reversal of 18182274412 is 21447228181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20112 + ... + 191752.

It is an arithmetic number, because the mean of its divisors is an integer number (1348076268).

Almost surely, 2^18182274412 is an apocalyptic number.

It is an amenable number.

18182274412 is a deficient number, since it is larger than the sum of its proper divisors (14171556020).

18182274412 is a wasteful number, since it uses less digits than its factorization.

18182274412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172089 (or 172087 counting only the distinct ones).

The product of its digits is 57344, while the sum is 40.

The spelling of 18182274412 in words is "eighteen billion, one hundred eighty-two million, two hundred seventy-four thousand, four hundred twelve".