68336233817 has 2 divisors, whose sum is σ = 68336233818. Its totient is φ = 68336233816.

The previous prime is 68336233741. The next prime is 68336233841. The reversal of 68336233817 is 71833263386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59955929881 + 8380303936 = 244859^2 + 91544^2 .

It is a cyclic number.

It is not a de Polignac number, because 68336233817 - 2¹⁰ = 68336232793 is a prime.

It is not a weakly prime, because it can be changed into another prime (68330233817) 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, 34168116908 + 34168116909.

It is an arithmetic number, because the mean of its divisors is an integer number (34168116909).

Almost surely, 2^68336233817 is an apocalyptic number.

It is an amenable number.

68336233817 is a deficient number, since it is larger than the sum of its proper divisors (1).

68336233817 is an equidigital number, since it uses as much as digits as its factorization.

68336233817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 50.

The spelling of 68336233817 in words is "sixty-eight billion, three hundred thirty-six million, two hundred thirty-three thousand, eight hundred seventeen".