68178806 has 16 divisors (see below), whose sum is σ = 109505520. Its totient is φ = 31722240.

The previous prime is 68178791. The next prime is 68178809. The reversal of 68178806 is 60887186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68178809) 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, 8240 + ... + 14291.

It is an arithmetic number, because the mean of its divisors is an integer number (6844095).

Almost surely, 2^68178806 is an apocalyptic number.

68178806 is a deficient number, since it is larger than the sum of its proper divisors (41326714).

68178806 is a wasteful number, since it uses less digits than its factorization.

68178806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22639.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 68178806 is about 8257.0458397662. The cubic root of 68178806 is about 408.5229541446.

The spelling of 68178806 in words is "sixty-eight million, one hundred seventy-eight thousand, eight hundred six".