18142694218 has 8 divisors (see below), whose sum is σ = 29688045120. Its totient is φ = 8246679180.

The previous prime is 18142694197. The next prime is 18142694267. The reversal of 18142694218 is 81249624181.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412333938 + ... + 412333981.

It is an arithmetic number, because the mean of its divisors is an integer number (3711005640).

Almost surely, 2^18142694218 is an apocalyptic number.

18142694218 is a deficient number, since it is larger than the sum of its proper divisors (11545350902).

18142694218 is a wasteful number, since it uses less digits than its factorization.

18142694218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824667932.

The product of its digits is 221184, while the sum is 46.

The spelling of 18142694218 in words is "eighteen billion, one hundred forty-two million, six hundred ninety-four thousand, two hundred eighteen".