18214776218 has 16 divisors (see below), whose sum is σ = 27370676736. Its totient is φ = 9091233360.

The previous prime is 18214776211. The next prime is 18214776233. The reversal of 18214776218 is 81267741281.

It is not an unprimeable number, because it can be changed into a prime (18214776211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3432155 + ... + 3437457.

It is an arithmetic number, because the mean of its divisors is an integer number (1710667296).

Almost surely, 2^18214776218 is an apocalyptic number.

18214776218 is a deficient number, since it is larger than the sum of its proper divisors (9155900518).

18214776218 is a wasteful number, since it uses less digits than its factorization.

18214776218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8029.

The product of its digits is 301056, while the sum is 47.

The spelling of 18214776218 in words is "eighteen billion, two hundred fourteen million, seven hundred seventy-six thousand, two hundred eighteen".