68163307 has 2 divisors, whose sum is σ = 68163308. Its totient is φ = 68163306.

The previous prime is 68163281. The next prime is 68163331. The reversal of 68163307 is 70336186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68163307 - 2¹⁵ = 68130539 is a prime.

It is not a weakly prime, because it can be changed into another prime (68163367) 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, 34081653 + 34081654.

It is an arithmetic number, because the mean of its divisors is an integer number (34081654).

Almost surely, 2^68163307 is an apocalyptic number.

68163307 is a deficient number, since it is larger than the sum of its proper divisors (1).

68163307 is an equidigital number, since it uses as much as digits as its factorization.

68163307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 68163307 is about 8256.1072546328. The cubic root of 68163307 is about 408.4919954666.

The spelling of 68163307 in words is "sixty-eight million, one hundred sixty-three thousand, three hundred seven".