68193718 has 8 divisors (see below), whose sum is σ = 102805200. Its totient is φ = 33925320.

The previous prime is 68193709. The next prime is 68193721. The reversal of 68193718 is 81739186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 85273 + ... + 86068.

It is an arithmetic number, because the mean of its divisors is an integer number (12850650).

Almost surely, 2^68193718 is an apocalyptic number.

68193718 is a deficient number, since it is larger than the sum of its proper divisors (34611482).

68193718 is a wasteful number, since it uses less digits than its factorization.

68193718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171542.

The product of its digits is 72576, while the sum is 43.

The square root of 68193718 is about 8257.9487767847. The cubic root of 68193718 is about 408.5527358836.

The spelling of 68193718 in words is "sixty-eight million, one hundred ninety-three thousand, seven hundred eighteen".