188136960173 has 2 divisors, whose sum is σ = 188136960174. Its totient is φ = 188136960172.

The previous prime is 188136960103. The next prime is 188136960191. The reversal of 188136960173 is 371069631881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175143924004 + 12993036169 = 418502^2 + 113987^2 .

It is a cyclic number.

It is not a de Polignac number, because 188136960173 - 2²⁰ = 188135911597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188136960103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94068480086 + 94068480087.

It is an arithmetic number, because the mean of its divisors is an integer number (94068480087).

Almost surely, 2^188136960173 is an apocalyptic number.

It is an amenable number.

188136960173 is a deficient number, since it is larger than the sum of its proper divisors (1).

188136960173 is an equidigital number, since it uses as much as digits as its factorization.

188136960173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 188136960173 in words is "one hundred eighty-eight billion, one hundred thirty-six million, nine hundred sixty thousand, one hundred seventy-three".