6698665289 has 8 divisors (see below), whose sum is σ = 7052065440. Its totient is φ = 6345349056.

The previous prime is 6698665273. The next prime is 6698665297. The reversal of 6698665289 is 9825668966.

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 6698665289 - 2⁴ = 6698665273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6698665229) 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, 205874 + ... + 236180.

It is an arithmetic number, because the mean of its divisors is an integer number (881508180).

Almost surely, 2^6698665289 is an apocalyptic number.

It is an amenable number.

6698665289 is a deficient number, since it is larger than the sum of its proper divisors (353400151).

6698665289 is a wasteful number, since it uses less digits than its factorization.

6698665289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41959.

The product of its digits is 67184640, while the sum is 65.

The square root of 6698665289 is about 81845.3742675785. The cubic root of 6698665289 is about 1885.0784385271.

The spelling of 6698665289 in words is "six billion, six hundred ninety-eight million, six hundred sixty-five thousand, two hundred eighty-nine".