68658033317 has 2 divisors, whose sum is σ = 68658033318. Its totient is φ = 68658033316.

The previous prime is 68658033289. The next prime is 68658033329. The reversal of 68658033317 is 71333085686.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62833443556 + 5824589761 = 250666^2 + 76319^2 .

It is a cyclic number.

It is not a de Polignac number, because 68658033317 - 2⁸ = 68658033061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68658033337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34329016658 + 34329016659.

It is an arithmetic number, because the mean of its divisors is an integer number (34329016659).

Almost surely, 2^68658033317 is an apocalyptic number.

It is an amenable number.

68658033317 is a deficient number, since it is larger than the sum of its proper divisors (1).

68658033317 is an equidigital number, since it uses as much as digits as its factorization.

68658033317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 68658033317 in words is "sixty-eight billion, six hundred fifty-eight million, thirty-three thousand, three hundred seventeen".