68887678 has 4 divisors (see below), whose sum is σ = 103331520. Its totient is φ = 34443838.

The previous prime is 68887661. The next prime is 68887699. The reversal of 68887678 is 87678886.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87678886 = 2 ⋅43839443.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17221918 + ... + 17221921.

It is an arithmetic number, because the mean of its divisors is an integer number (25832880).

Almost surely, 2^68887678 is an apocalyptic number.

68887678 is a deficient number, since it is larger than the sum of its proper divisors (34443842).

68887678 is a wasteful number, since it uses less digits than its factorization.

68887678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34443841.

The product of its digits is 7225344, while the sum is 58.

The square root of 68887678 is about 8299.8601193032. The cubic root of 68887678 is about 409.9339135998.

The spelling of 68887678 in words is "sixty-eight million, eight hundred eighty-seven thousand, six hundred seventy-eight".