689379914559 has 8 divisors (see below), whose sum is σ = 1050483679360. Its totient is φ = 393931379736.

The previous prime is 689379914519. The next prime is 689379914563. The reversal of 689379914559 is 955419973986.

689379914559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-689379914559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689379914519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16413807469 + ... + 16413807510.

It is an arithmetic number, because the mean of its divisors is an integer number (131310459920).

Almost surely, 2^689379914559 is an apocalyptic number.

689379914559 is a deficient number, since it is larger than the sum of its proper divisors (361103764801).

689379914559 is a wasteful number, since it uses less digits than its factorization.

689379914559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32827614989.

The product of its digits is 661348800, while the sum is 75.

The spelling of 689379914559 in words is "six hundred eighty-nine billion, three hundred seventy-nine million, nine hundred fourteen thousand, five hundred fifty-nine".