68068836307 has 2 divisors, whose sum is σ = 68068836308. Its totient is φ = 68068836306.

The previous prime is 68068836293. The next prime is 68068836313. The reversal of 68068836307 is 70363886086.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68068836307 is a prime.

It is a super-2 number, since 2×68068836307² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68068836317) 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, 34034418153 + 34034418154.

It is an arithmetic number, because the mean of its divisors is an integer number (34034418154).

Almost surely, 2^68068836307 is an apocalyptic number.

68068836307 is a deficient number, since it is larger than the sum of its proper divisors (1).

68068836307 is an equidigital number, since it uses as much as digits as its factorization.

68068836307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 68068836307 in words is "sixty-eight billion, sixty-eight million, eight hundred thirty-six thousand, three hundred seven".