68308314462191 has 2 divisors, whose sum is σ = 68308314462192. Its totient is φ = 68308314462190.

The previous prime is 68308314462139. The next prime is 68308314462203. The reversal of 68308314462191 is 19126441380386.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68308314462191 - 2¹⁸ = 68308314200047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68308314462121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34154157231095 + 34154157231096.

It is an arithmetic number, because the mean of its divisors is an integer number (34154157231096).

Almost surely, 2^{68308314462191} is an apocalyptic number.

68308314462191 is a deficient number, since it is larger than the sum of its proper divisors (1).

68308314462191 is an equidigital number, since it uses as much as digits as its factorization.

68308314462191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 68308314462191 in words is "sixty-eight trillion, three hundred eight billion, three hundred fourteen million, four hundred sixty-two thousand, one hundred ninety-one".