689887663233 has 16 divisors (see below), whose sum is σ = 974241691200. Its totient is φ = 432745074176.

The previous prime is 689887663189. The next prime is 689887663279. The reversal of 689887663233 is 332366788986.

It is a cyclic number.

It is not a de Polignac number, because 689887663233 - 2⁶ = 689887663169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689887663733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1785135 + ... + 2136932.

It is an arithmetic number, because the mean of its divisors is an integer number (60890105700).

Almost surely, 2^689887663233 is an apocalyptic number.

It is an amenable number.

689887663233 is a deficient number, since it is larger than the sum of its proper divisors (284354027967).

689887663233 is a wasteful number, since it uses less digits than its factorization.

689887663233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925536.

The product of its digits is 376233984, while the sum is 69.

The spelling of 689887663233 in words is "six hundred eighty-nine billion, eight hundred eighty-seven million, six hundred sixty-three thousand, two hundred thirty-three".