68163023 has 4 divisors (see below), whose sum is σ = 68196168. Its totient is φ = 68129880.

The previous prime is 68163001. The next prime is 68163037. The reversal of 68163023 is 32036186.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68163023 - 2⁸ = 68162767 is a prime.

It is a Duffinian number.

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68163083) 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 in 3 ways as a sum of consecutive naturals, for example, 13268 + ... + 17673.

It is an arithmetic number, because the mean of its divisors is an integer number (17049042).

Almost surely, 2^68163023 is an apocalyptic number.

68163023 is a deficient number, since it is larger than the sum of its proper divisors (33145).

68163023 is a wasteful number, since it uses less digits than its factorization.

68163023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33144.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 68163023 is about 8256.0900552259. The cubic root of 68163023 is about 408.4914281433.

The spelling of 68163023 in words is "sixty-eight million, one hundred sixty-three thousand, twenty-three".