168127888273 has 2 divisors, whose sum is σ = 168127888274. Its totient is φ = 168127888272.

The previous prime is 168127888219. The next prime is 168127888321. The reversal of 168127888273 is 372888721861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116740438929 + 51387449344 = 341673^2 + 226688^2 .

It is an emirp because it is prime and its reverse (372888721861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168127888273 - 2⁹ = 168127887761 is a prime.

It is not a weakly prime, because it can be changed into another prime (168127888373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84063944136 + 84063944137.

It is an arithmetic number, because the mean of its divisors is an integer number (84063944137).

Almost surely, 2^168127888273 is an apocalyptic number.

It is an amenable number.

168127888273 is a deficient number, since it is larger than the sum of its proper divisors (1).

168127888273 is an equidigital number, since it uses as much as digits as its factorization.

168127888273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14450688, while the sum is 61.

The spelling of 168127888273 in words is "one hundred sixty-eight billion, one hundred twenty-seven million, eight hundred eighty-eight thousand, two hundred seventy-three".