18733123922 has 18 divisors (see below), whose sum is σ = 29855083503. Its totient is φ = 8814039232.

The previous prime is 18733123921. The next prime is 18733123943. The reversal of 18733123922 is 22932133781.

It can be written as a sum of positive squares in 5 ways, for example, as 6923737681 + 11809386241 = 83209^2 + 108671^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=96781.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18733123922.

It is not an unprimeable number, because it can be changed into a prime (18733123921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3287708 + ... + 3293400.

Almost surely, 2^18733123922 is an apocalyptic number.

18733123922 is a deficient number, since it is larger than the sum of its proper divisors (11121959581).

18733123922 is an frugal number, since it uses more digits than its factorization.

18733123922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11422 (or 5712 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The spelling of 18733123922 in words is "eighteen billion, seven hundred thirty-three million, one hundred twenty-three thousand, nine hundred twenty-two".