68018263 has 2 divisors, whose sum is σ = 68018264. Its totient is φ = 68018262.

The previous prime is 68018257. The next prime is 68018273. The reversal of 68018263 is 36281086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68018263 - 2⁵ = 68018231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68018273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34009131 + 34009132.

It is an arithmetic number, because the mean of its divisors is an integer number (34009132).

Almost surely, 2^68018263 is an apocalyptic number.

68018263 is a deficient number, since it is larger than the sum of its proper divisors (1).

68018263 is an equidigital number, since it uses as much as digits as its factorization.

68018263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 68018263 is about 8247.3185339236. The cubic root of 68018263 is about 408.2020477381.

The spelling of 68018263 in words is "sixty-eight million, eighteen thousand, two hundred sixty-three".