68186685 has 64 divisors (see below), whose sum is σ = 131904000. Its totient is φ = 30030336.

The previous prime is 68186669. The next prime is 68186693. The reversal of 68186685 is 58668186.

It is a happy number.

It is not a de Polignac number, because 68186685 - 2⁴ = 68186669 is a prime.

It is a super-2 number, since 2×68186685² = 9298848022578450, which contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 148977 + ... + 149433.

It is an arithmetic number, because the mean of its divisors is an integer number (2061000).

Almost surely, 2^68186685 is an apocalyptic number.

It is an amenable number.

68186685 is a deficient number, since it is larger than the sum of its proper divisors (63717315).

68186685 is a wasteful number, since it uses less digits than its factorization.

68186685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 501 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 68186685 is about 8257.5229336648. The cubic root of 68186685 is about 408.5386903563.

The spelling of 68186685 in words is "sixty-eight million, one hundred eighty-six thousand, six hundred eighty-five".