18457388222 has 32 divisors (see below), whose sum is σ = 34248215232. Its totient is φ = 7264744704.

The previous prime is 18457388221. The next prime is 18457388239. The reversal of 18457388222 is 22288375481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18457388221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221543 + ... + 293250.

It is an arithmetic number, because the mean of its divisors is an integer number (1070256726).

Almost surely, 2^18457388222 is an apocalyptic number.

18457388222 is a deficient number, since it is larger than the sum of its proper divisors (15790827010).

18457388222 is a wasteful number, since it uses less digits than its factorization.

18457388222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515012.

The product of its digits is 1720320, while the sum is 50.

The spelling of 18457388222 in words is "eighteen billion, four hundred fifty-seven million, three hundred eighty-eight thousand, two hundred twenty-two".