18140183194 has 8 divisors (see below), whose sum is σ = 31097456928. Its totient is φ = 7774364220.

The previous prime is 18140183179. The next prime is 18140183197. The reversal of 18140183194 is 49138104181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18140183197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647863672 + ... + 647863699.

It is an arithmetic number, because the mean of its divisors is an integer number (3887182116).

Almost surely, 2^18140183194 is an apocalyptic number.

18140183194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18140183194 is a deficient number, since it is larger than the sum of its proper divisors (12957273734).

18140183194 is a wasteful number, since it uses less digits than its factorization.

18140183194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295727380.

The product of its (nonzero) digits is 27648, while the sum is 40.

The spelling of 18140183194 in words is "eighteen billion, one hundred forty million, one hundred eighty-three thousand, one hundred ninety-four".