68018329 has 2 divisors, whose sum is σ = 68018330. Its totient is φ = 68018328.

The previous prime is 68018317. The next prime is 68018341. The reversal of 68018329 is 92381086.

It is a balanced prime because it is at equal distance from previous prime (68018317) and next prime (68018341).

It can be written as a sum of positive squares in only one way, i.e., 64320400 + 3697929 = 8020^2 + 1923^2 .

It is a cyclic number.

It is not a de Polignac number, because 68018329 - 2¹⁹ = 67494041 is a prime.

It is not a weakly prime, because it can be changed into another prime (68018359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34009164 + 34009165.

It is an arithmetic number, because the mean of its divisors is an integer number (34009165).

Almost surely, 2^68018329 is an apocalyptic number.

It is an amenable number.

68018329 is a deficient number, since it is larger than the sum of its proper divisors (1).

68018329 is an equidigital number, since it uses as much as digits as its factorization.

68018329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 68018329 is about 8247.3225352232. The cubic root of 68018329 is about 408.2021797680.

The spelling of 68018329 in words is "sixty-eight million, eighteen thousand, three hundred twenty-nine".