168072742727 has 2 divisors, whose sum is σ = 168072742728. Its totient is φ = 168072742726.

The previous prime is 168072742631. The next prime is 168072742729. The reversal of 168072742727 is 727247270861.

168072742727 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 is an emirp because it is prime and its reverse (727247270861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168072742727 - 2³⁴ = 150892873543 is a prime.

Together with 168072742729, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168072742729) 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, 84036371363 + 84036371364.

It is an arithmetic number, because the mean of its divisors is an integer number (84036371364).

Almost surely, 2^168072742727 is an apocalyptic number.

168072742727 is a deficient number, since it is larger than the sum of its proper divisors (1).

168072742727 is an equidigital number, since it uses as much as digits as its factorization.

168072742727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3687936, while the sum is 53.

The spelling of 168072742727 in words is "one hundred sixty-eight billion, seventy-two million, seven hundred forty-two thousand, seven hundred twenty-seven".