68608718816 has 48 divisors (see below), whose sum is σ = 148428488880. Its totient is φ = 30958126080.

The previous prime is 68608718803. The next prime is 68608718831. The reversal of 68608718816 is 61881780686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663131 + ... + 759578.

It is an arithmetic number, because the mean of its divisors is an integer number (3092260185).

Almost surely, 2^68608718816 is an apocalyptic number.

It is an amenable number.

68608718816 is an abundant number, since it is smaller than the sum of its proper divisors (79819770064).

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

68608718816 is a wasteful number, since it uses less digits than its factorization.

68608718816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422867 (or 1422859 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 68608718816 in words is "sixty-eight billion, six hundred eight million, seven hundred eighteen thousand, eight hundred sixteen".