18218545822 has 16 divisors (see below), whose sum is σ = 29933109360. Its totient is φ = 8277797248.

The previous prime is 18218545759. The next prime is 18218545831. The reversal of 18218545822 is 22854581281.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9237628 + ... + 9239599.

It is an arithmetic number, because the mean of its divisors is an integer number (1870819335).

Almost surely, 2^18218545822 is an apocalyptic number.

18218545822 is a deficient number, since it is larger than the sum of its proper divisors (11714563538).

18218545822 is a wasteful number, since it uses less digits than its factorization.

18218545822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18477275.

The product of its digits is 409600, while the sum is 46.

The spelling of 18218545822 in words is "eighteen billion, two hundred eighteen million, five hundred forty-five thousand, eight hundred twenty-two".