68018705 has 16 divisors (see below), whose sum is σ = 85757184. Its totient is φ = 51691200.

The previous prime is 68018669. The next prime is 68018707. The reversal of 68018705 is 50781086.

It is a happy number.

It is not a de Polignac number, because 68018705 - 2⁶ = 68018641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68018707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15407 + ... + 19323.

It is an arithmetic number, because the mean of its divisors is an integer number (5359824).

Almost surely, 2^68018705 is an apocalyptic number.

It is an amenable number.

68018705 is a deficient number, since it is larger than the sum of its proper divisors (17738479).

68018705 is a wasteful number, since it uses less digits than its factorization.

68018705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 68018705 is about 8247.3453304685. The cubic root of 68018705 is about 408.2029319365.

The spelling of 68018705 in words is "sixty-eight million, eighteen thousand, seven hundred five".