68737688 has 16 divisors (see below), whose sum is σ = 131626080. Its totient is φ = 33637408.

The previous prime is 68737679. The next prime is 68737709. The reversal of 68737688 is 88673786.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 91031 + ... + 91782.

It is an arithmetic number, because the mean of its divisors is an integer number (8226630).

Almost surely, 2^68737688 is an apocalyptic number.

It is an amenable number.

68737688 is a deficient number, since it is larger than the sum of its proper divisors (62888392).

68737688 is a wasteful number, since it uses less digits than its factorization.

68737688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182866 (or 182862 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 68737688 is about 8290.8195011109. The cubic root of 68737688 is about 409.6361793350.

The spelling of 68737688 in words is "sixty-eight million, seven hundred thirty-seven thousand, six hundred eighty-eight".