168593068909 has 2 divisors, whose sum is σ = 168593068910. Its totient is φ = 168593068908.

The previous prime is 168593068879. The next prime is 168593068921. The reversal of 168593068909 is 909860395861.

It is a happy number.

168593068909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93614581225 + 74978487684 = 305965^2 + 273822^2 .

It is a cyclic number.

It is not a de Polignac number, because 168593068909 - 2²³ = 168584680301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168593068309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84296534454 + 84296534455.

It is an arithmetic number, because the mean of its divisors is an integer number (84296534455).

Almost surely, 2^168593068909 is an apocalyptic number.

It is an amenable number.

168593068909 is a deficient number, since it is larger than the sum of its proper divisors (1).

168593068909 is an equidigital number, since it uses as much as digits as its factorization.

168593068909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25194240, while the sum is 64.

The spelling of 168593068909 in words is "one hundred sixty-eight billion, five hundred ninety-three million, sixty-eight thousand, nine hundred nine".