68363218 has 16 divisors (see below), whose sum is σ = 127848384. Its totient is φ = 26634960.

The previous prime is 68363213. The next prime is 68363219. The reversal of 68363218 is 81236386.

It is not an unprimeable number, because it can be changed into a prime (68363213) 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 7 ways as a sum of consecutive naturals, for example, 221805 + ... + 222112.

It is an arithmetic number, because the mean of its divisors is an integer number (7990524).

Almost surely, 2^68363218 is an apocalyptic number.

68363218 is a deficient number, since it is larger than the sum of its proper divisors (59485166).

68363218 is a wasteful number, since it uses less digits than its factorization.

68363218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443937.

The product of its digits is 41472, while the sum is 37.

The square root of 68363218 is about 8268.2052466058. The cubic root of 68363218 is about 408.8909507757.

The spelling of 68363218 in words is "sixty-eight million, three hundred sixty-three thousand, two hundred eighteen".