168173053611727 has 2 divisors, whose sum is σ = 168173053611728. Its totient is φ = 168173053611726.

The previous prime is 168173053611721. The next prime is 168173053611737. The reversal of 168173053611727 is 727116350371861.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168173053611727 is a prime.

It is a super-2 number, since 2×168173053611727² (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 (168173053611721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84086526805863 + 84086526805864.

It is an arithmetic number, because the mean of its divisors is an integer number (84086526805864).

Almost surely, 2^{168173053611727} is an apocalyptic number.

168173053611727 is a deficient number, since it is larger than the sum of its proper divisors (1).

168173053611727 is an equidigital number, since it uses as much as digits as its factorization.

168173053611727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 168173053611727 in words is "one hundred sixty-eight trillion, one hundred seventy-three billion, fifty-three million, six hundred eleven thousand, seven hundred twenty-seven".