68610880836 has 36 divisors (see below), whose sum is σ = 173441394672. Its totient is φ = 22869194544.

The previous prime is 68610880783. The next prime is 68610880859. The reversal of 68610880836 is 63808801686.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1120855 + ... + 1180481.

Almost surely, 2^68610880836 is an apocalyptic number.

It is an amenable number.

68610880836 is an abundant number, since it is smaller than the sum of its proper divisors (104830513836).

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

68610880836 is a wasteful number, since it uses less digits than its factorization.

68610880836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91600 (or 91595 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 68610880836 in words is "sixty-eight billion, six hundred ten million, eight hundred eighty thousand, eight hundred thirty-six".