689589729204 has 24 divisors (see below), whose sum is σ = 1609647906720. Its totient is φ = 229776785184.

The previous prime is 689589729161. The next prime is 689589729217. The reversal of 689589729204 is 402927985986.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10773999 + ... + 10837814.

It is an arithmetic number, because the mean of its divisors is an integer number (67068662780).

Almost surely, 2^689589729204 is an apocalyptic number.

It is an amenable number.

689589729204 is an abundant number, since it is smaller than the sum of its proper divisors (920058177516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689589729204 is a wasteful number, since it uses less digits than its factorization.

689589729204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21614479 (or 21614477 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 689589729204 in words is "six hundred eighty-nine billion, five hundred eighty-nine million, seven hundred twenty-nine thousand, two hundred four".