18423122361 has 32 divisors (see below), whose sum is σ = 30153984000. Its totient is φ = 9973409040.

The previous prime is 18423122321. The next prime is 18423122363. The reversal of 18423122361 is 16322132481.

It is not a de Polignac number, because 18423122361 - 2⁶ = 18423122297 is a prime.

It is a super-2 number, since 2×18423122361² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18423122363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451605 + ... + 490706.

It is an arithmetic number, because the mean of its divisors is an integer number (942312000).

Almost surely, 2^18423122361 is an apocalyptic number.

It is an amenable number.

18423122361 is a deficient number, since it is larger than the sum of its proper divisors (11730861639).

18423122361 is an equidigital number, since it uses as much as digits as its factorization.

18423122361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942354 (or 942340 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The spelling of 18423122361 in words is "eighteen billion, four hundred twenty-three million, one hundred twenty-two thousand, three hundred sixty-one".