68305768 has 16 divisors (see below), whose sum is σ = 133642080. Its totient is φ = 32667888.

The previous prime is 68305753. The next prime is 68305771. The reversal of 68305768 is 86750386.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185430 + ... + 185797.

It is an arithmetic number, because the mean of its divisors is an integer number (8352630).

Almost surely, 2^68305768 is an apocalyptic number.

It is an amenable number.

68305768 is a deficient number, since it is larger than the sum of its proper divisors (65336312).

68305768 is a wasteful number, since it uses less digits than its factorization.

68305768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371256 (or 371252 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68305768 is about 8264.7303646278. The cubic root of 68305768 is about 408.7763795723.

The spelling of 68305768 in words is "sixty-eight million, three hundred five thousand, seven hundred sixty-eight".