68346442737967 has 2 divisors, whose sum is σ = 68346442737968. Its totient is φ = 68346442737966.

The previous prime is 68346442737949. The next prime is 68346442737973. The reversal of 68346442737967 is 76973724464386.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68346442737967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68346442737893 and 68346442737902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68346442734967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34173221368983 + 34173221368984.

It is an arithmetic number, because the mean of its divisors is an integer number (34173221368984).

Almost surely, 2^{68346442737967} is an apocalyptic number.

68346442737967 is a deficient number, since it is larger than the sum of its proper divisors (1).

68346442737967 is an equidigital number, since it uses as much as digits as its factorization.

68346442737967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6145155072, while the sum is 76.

The spelling of 68346442737967 in words is "sixty-eight trillion, three hundred forty-six billion, four hundred forty-two million, seven hundred thirty-seven thousand, nine hundred sixty-seven".