689813670848 has 28 divisors (see below), whose sum is σ = 1378035928200. Its totient is φ = 342592019712.

The previous prime is 689813670803. The next prime is 689813670857. The reversal of 689813670848 is 848076318986.

It is a congruent number.

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, 36159386 + ... + 36178457.

Almost surely, 2^689813670848 is an apocalyptic number.

It is an amenable number.

689813670848 is a deficient number, since it is larger than the sum of its proper divisors (688222257352).

689813670848 is a wasteful number, since it uses less digits than its factorization.

689813670848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72338004 (or 72337994 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 68.

The spelling of 689813670848 in words is "six hundred eighty-nine billion, eight hundred thirteen million, six hundred seventy thousand, eight hundred forty-eight".