68308314462139 has 2 divisors, whose sum is σ = 68308314462140. Its totient is φ = 68308314462138.

The previous prime is 68308314462137. The next prime is 68308314462191. The reversal of 68308314462139 is 93126441380386.

68308314462139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68308314462139 - 2¹ = 68308314462137 is a prime.

Together with 68308314462137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68308314462137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34154157231069 + 34154157231070.

It is an arithmetic number, because the mean of its divisors is an integer number (34154157231070).

Almost surely, 2^{68308314462139} is an apocalyptic number.

68308314462139 is a deficient number, since it is larger than the sum of its proper divisors (1).

68308314462139 is an equidigital number, since it uses as much as digits as its factorization.

68308314462139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17915904, while the sum is 58.

The spelling of 68308314462139 in words is "sixty-eight trillion, three hundred eight billion, three hundred fourteen million, four hundred sixty-two thousand, one hundred thirty-nine".