18906254922 has 16 divisors (see below), whose sum is σ = 38044490400. Its totient is φ = 6263421552.

The previous prime is 18906254911. The next prime is 18906254987. The reversal of 18906254922 is 22945260981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9664797 + ... + 9666752.

It is an arithmetic number, because the mean of its divisors is an integer number (2377780650).

Almost surely, 2^18906254922 is an apocalyptic number.

18906254922 is an abundant number, since it is smaller than the sum of its proper divisors (19138235478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18906254922 is a wasteful number, since it uses less digits than its factorization.

18906254922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19331717.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 18906254922 in words is "eighteen billion, nine hundred six million, two hundred fifty-four thousand, nine hundred twenty-two".