689165437064999 has 8 divisors (see below), whose sum is σ = 711399588556800. Its totient is φ = 666931473595800.

The previous prime is 689165437064987. The next prime is 689165437065043. The reversal of 689165437064999 is 999460734561986.

689165437064999 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 cyclic number.

It is not a de Polignac number, because 689165437064999 - 2⁸ = 689165437064743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 689165437064999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689165437066999) 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, 39537899 + ... + 54236300.

It is an arithmetic number, because the mean of its divisors is an integer number (88924948569600).

Almost surely, 2^{689165437064999} is an apocalyptic number.

689165437064999 is a deficient number, since it is larger than the sum of its proper divisors (22234151491801).

689165437064999 is a wasteful number, since it uses less digits than its factorization.

689165437064999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94011301.

The product of its (nonzero) digits is 19046845440, while the sum is 86.

The spelling of 689165437064999 in words is "six hundred eighty-nine trillion, one hundred sixty-five billion, four hundred thirty-seven million, sixty-four thousand, nine hundred ninety-nine".