68185994 has 8 divisors (see below), whose sum is σ = 103511520. Its totient is φ = 33682156.

The previous prime is 68185991. The next prime is 68186011. The reversal of 68185994 is 49958186.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (68185991) 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, 205214 + ... + 205545.

It is an arithmetic number, because the mean of its divisors is an integer number (12938940).

Almost surely, 2^68185994 is an apocalyptic number.

68185994 is a deficient number, since it is larger than the sum of its proper divisors (35325526).

68185994 is a wasteful number, since it uses less digits than its factorization.

68185994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410844.

The product of its digits is 622080, while the sum is 50.

The square root of 68185994 is about 8257.4810929242. The cubic root of 68185994 is about 408.5373103157.

The spelling of 68185994 in words is "sixty-eight million, one hundred eighty-five thousand, nine hundred ninety-four".