688080606806 has 32 divisors (see below), whose sum is σ = 1082924384256. Its totient is φ = 327271428000.

The previous prime is 688080606779. The next prime is 688080606847. The reversal of 688080606806 is 608606080886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42700691 + ... + 42716801.

It is an arithmetic number, because the mean of its divisors is an integer number (33841387008).

Almost surely, 2^688080606806 is an apocalyptic number.

688080606806 is a deficient number, since it is larger than the sum of its proper divisors (394843777450).

688080606806 is a wasteful number, since it uses less digits than its factorization.

688080606806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21188.

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 688080606806 in words is "six hundred eighty-eight billion, eighty million, six hundred six thousand, eight hundred six".