68865678 has 36 divisors (see below), whose sum is σ = 173571840. Its totient is φ = 19675656.

The previous prime is 68865677. The next prime is 68865689. The reversal of 68865678 is 87656886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68865673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 38158 + ... + 39921.

It is an arithmetic number, because the mean of its divisors is an integer number (4821440).

Almost surely, 2^68865678 is an apocalyptic number.

68865678 is an abundant number, since it is smaller than the sum of its proper divisors (104706162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68865678 is a wasteful number, since it uses less digits than its factorization.

68865678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78101 (or 78091 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 68865678 is about 8298.5346899317. The cubic root of 68865678 is about 409.8902700601.

It can be divided in two parts, 688 and 65678, that added together give a palindrome (66366).

The spelling of 68865678 in words is "sixty-eight million, eight hundred sixty-five thousand, six hundred seventy-eight".