18700095173 has 2 divisors, whose sum is σ = 18700095174. Its totient is φ = 18700095172.

The previous prime is 18700095163. The next prime is 18700095209. The reversal of 18700095173 is 37159000781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18587777569 + 112317604 = 136337^2 + 10598^2 .

It is a cyclic number.

It is not a de Polignac number, because 18700095173 - 2³⁴ = 1520225989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18700095173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18700095163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9350047586 + 9350047587.

It is an arithmetic number, because the mean of its divisors is an integer number (9350047587).

Almost surely, 2^18700095173 is an apocalyptic number.

It is an amenable number.

18700095173 is a deficient number, since it is larger than the sum of its proper divisors (1).

18700095173 is an equidigital number, since it uses as much as digits as its factorization.

18700095173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 18700095173 in words is "eighteen billion, seven hundred million, ninety-five thousand, one hundred seventy-three".