185168495314289 has 2 divisors, whose sum is σ = 185168495314290. Its totient is φ = 185168495314288.

The previous prime is 185168495314241. The next prime is 185168495314303. The reversal of 185168495314289 is 982413594861581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144245504550625 + 40922990763664 = 12010225^2 + 6397108^2 .

It is an emirp because it is prime and its reverse (982413594861581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 185168495314289 - 2¹² = 185168495310193 is a prime.

It is not a weakly prime, because it can be changed into another prime (185168495314589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92584247657144 + 92584247657145.

It is an arithmetic number, because the mean of its divisors is an integer number (92584247657145).

Almost surely, 2^{185168495314289} is an apocalyptic number.

It is an amenable number.

185168495314289 is a deficient number, since it is larger than the sum of its proper divisors (1).

185168495314289 is an equidigital number, since it uses as much as digits as its factorization.

185168495314289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 597196800, while the sum is 74.

The spelling of 185168495314289 in words is "one hundred eighty-five trillion, one hundred sixty-eight billion, four hundred ninety-five million, three hundred fourteen thousand, two hundred eighty-nine".