688679719216 has 10 divisors (see below), whose sum is σ = 1334316956012. Its totient is φ = 344339859600.

The previous prime is 688679719199. The next prime is 688679719229. The reversal of 688679719216 is 612917976886.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521241210 + ... + 21521241241.

Almost surely, 2^688679719216 is an apocalyptic number.

It is an amenable number.

688679719216 is a deficient number, since it is larger than the sum of its proper divisors (645637236796).

688679719216 is a wasteful number, since it uses less digits than its factorization.

688679719216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43042482459 (or 43042482453 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 70.

The spelling of 688679719216 in words is "six hundred eighty-eight billion, six hundred seventy-nine million, seven hundred nineteen thousand, two hundred sixteen".