689256899192 has 16 divisors (see below), whose sum is σ = 1301654218200. Its totient is φ = 342149107680.

The previous prime is 689256899189. The next prime is 689256899249. The reversal of 689256899192 is 291998652986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309916559 + ... + 309918782.

Almost surely, 2^689256899192 is an apocalyptic number.

It is an amenable number.

689256899192 is a deficient number, since it is larger than the sum of its proper divisors (612397319008).

689256899192 is a wasteful number, since it uses less digits than its factorization.

689256899192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619835486 (or 619835482 counting only the distinct ones).

The product of its digits is 302330880, while the sum is 74.

The spelling of 689256899192 in words is "six hundred eighty-nine billion, two hundred fifty-six million, eight hundred ninety-nine thousand, one hundred ninety-two".