68808678 has 24 divisors (see below), whose sum is σ = 141454152. Its totient is φ = 22313664.

The previous prime is 68808629. The next prime is 68808679. The reversal of 68808678 is 87680886.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68808678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68808679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4026 + ... + 12402.

It is an arithmetic number, because the mean of its divisors is an integer number (5893923).

Almost surely, 2^68808678 is an apocalyptic number.

68808678 is an abundant number, since it is smaller than the sum of its proper divisors (72645474).

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

68808678 is a wasteful number, since it uses less digits than its factorization.

68808678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456 (or 8419 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 68808678 is about 8295.0996377379. The cubic root of 68808678 is about 409.7771503606. Note that the first 3 decimals are identical.

The spelling of 68808678 in words is "sixty-eight million, eight hundred eight thousand, six hundred seventy-eight".