168688375107319 has 2 divisors, whose sum is σ = 168688375107320. Its totient is φ = 168688375107318.

The previous prime is 168688375107311. The next prime is 168688375107391. The reversal of 168688375107319 is 913701573886861.

Together with next prime (168688375107391) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168688375107319 - 2³ = 168688375107311 is a prime.

It is a super-2 number, since 2×168688375107319² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168688375107311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84344187553659 + 84344187553660.

It is an arithmetic number, because the mean of its divisors is an integer number (84344187553660).

Almost surely, 2^{168688375107319} is an apocalyptic number.

168688375107319 is a deficient number, since it is larger than the sum of its proper divisors (1).

168688375107319 is an equidigital number, since it uses as much as digits as its factorization.

168688375107319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 365783040, while the sum is 73.

The spelling of 168688375107319 in words is "one hundred sixty-eight trillion, six hundred eighty-eight billion, three hundred seventy-five million, one hundred seven thousand, three hundred nineteen".