68916878 has 16 divisors (see below), whose sum is σ = 114216480. Its totient is φ = 31021056.

The previous prime is 68916839. The next prime is 68916893. The reversal of 68916878 is 87861986.

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 in 7 ways as a sum of consecutive naturals, for example, 43283 + ... + 44846.

It is an arithmetic number, because the mean of its divisors is an integer number (7138530).

Almost surely, 2^68916878 is an apocalyptic number.

68916878 is a deficient number, since it is larger than the sum of its proper divisors (45299602).

68916878 is a wasteful number, since it uses less digits than its factorization.

68916878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88171.

The product of its digits is 1161216, while the sum is 53.

The square root of 68916878 is about 8301.6189987255. The cubic root of 68916878 is about 409.9918261309.

The spelling of 68916878 in words is "sixty-eight million, nine hundred sixteen thousand, eight hundred seventy-eight".