18658675223 has 2 divisors, whose sum is σ = 18658675224. Its totient is φ = 18658675222.

The previous prime is 18658675177. The next prime is 18658675267. The reversal of 18658675223 is 32257685681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18658675223 - 2³⁴ = 1478806039 is a prime.

It is a super-2 number, since 2×18658675223² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18658675423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9329337611 + 9329337612.

It is an arithmetic number, because the mean of its divisors is an integer number (9329337612).

Almost surely, 2^18658675223 is an apocalyptic number.

18658675223 is a deficient number, since it is larger than the sum of its proper divisors (1).

18658675223 is an equidigital number, since it uses as much as digits as its factorization.

18658675223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4838400, while the sum is 53.

The spelling of 18658675223 in words is "eighteen billion, six hundred fifty-eight million, six hundred seventy-five thousand, two hundred twenty-three".