18222223642 has 16 divisors (see below), whose sum is σ = 31902739200. Its totient is φ = 7643364048.

The previous prime is 18222223577. The next prime is 18222223709. The reversal of 18222223642 is 24632222281.

It is a junction number, because it is equal to n+sod(n) for n = 18222223598 and 18222223607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13846017 + ... + 13847332.

It is an arithmetic number, because the mean of its divisors is an integer number (1993921200).

Almost surely, 2^18222223642 is an apocalyptic number.

18222223642 is a deficient number, since it is larger than the sum of its proper divisors (13680515558).

18222223642 is a wasteful number, since it uses less digits than its factorization.

18222223642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27693405.

The product of its digits is 36864, while the sum is 34.

The spelling of 18222223642 in words is "eighteen billion, two hundred twenty-two million, two hundred twenty-three thousand, six hundred forty-two".