68358033239 has 2 divisors, whose sum is σ = 68358033240. Its totient is φ = 68358033238.

The previous prime is 68358033217. The next prime is 68358033259. The reversal of 68358033239 is 93233085386.

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-68358033239 is a prime.

It is a super-2 number, since 2×68358033239² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68358033259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34179016619 + 34179016620.

It is an arithmetic number, because the mean of its divisors is an integer number (34179016620).

Almost surely, 2^68358033239 is an apocalyptic number.

68358033239 is a deficient number, since it is larger than the sum of its proper divisors (1).

68358033239 is an equidigital number, since it uses as much as digits as its factorization.

68358033239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 68358033239 in words is "sixty-eight billion, three hundred fifty-eight million, thirty-three thousand, two hundred thirty-nine".