68309294759 has 2 divisors, whose sum is σ = 68309294760. Its totient is φ = 68309294758.

The previous prime is 68309294671. The next prime is 68309294783. The reversal of 68309294759 is 95749290386.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68309294759 - 2¹² = 68309290663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68309294789) 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, 34154647379 + 34154647380.

It is an arithmetic number, because the mean of its divisors is an integer number (34154647380).

Almost surely, 2^68309294759 is an apocalyptic number.

68309294759 is a deficient number, since it is larger than the sum of its proper divisors (1).

68309294759 is an equidigital number, since it uses as much as digits as its factorization.

68309294759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 68309294759 in words is "sixty-eight billion, three hundred nine million, two hundred ninety-four thousand, seven hundred fifty-nine".