168135230879219 has 2 divisors, whose sum is σ = 168135230879220. Its totient is φ = 168135230879218.

The previous prime is 168135230879177. The next prime is 168135230879251. The reversal of 168135230879219 is 912978032531861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168135230879219 - 2⁸ = 168135230878963 is a prime.

It is a super-2 number, since 2×168135230879219² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168135230879519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84067615439609 + 84067615439610.

It is an arithmetic number, because the mean of its divisors is an integer number (84067615439610).

Almost surely, 2^{168135230879219} is an apocalyptic number.

168135230879219 is a deficient number, since it is larger than the sum of its proper divisors (1).

168135230879219 is an equidigital number, since it uses as much as digits as its factorization.

168135230879219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 168135230879219 in words is "one hundred sixty-eight trillion, one hundred thirty-five billion, two hundred thirty million, eight hundred seventy-nine thousand, two hundred nineteen".