6808042189 has 8 divisors (see below), whose sum is σ = 7451931032. Its totient is φ = 6181323840.

The previous prime is 6808042181. The next prime is 6808042201. The reversal of 6808042189 is 9812408086.

It can be written as a sum of positive squares in 4 ways, for example, as 306845289 + 6501196900 = 17517^2 + 80630^2 .

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 6808042189 - 2³ = 6808042181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6808042181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4291794 + ... + 4293379.

It is an arithmetic number, because the mean of its divisors is an integer number (931491379).

Almost surely, 2^6808042189 is an apocalyptic number.

It is an amenable number.

6808042189 is a deficient number, since it is larger than the sum of its proper divisors (643888843).

6808042189 is a wasteful number, since it uses less digits than its factorization.

6808042189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8585247.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 6808042189 is about 82510.8610365932. The cubic root of 6808042189 is about 1895.2830536777.

The spelling of 6808042189 in words is "six billion, eight hundred eight million, forty-two thousand, one hundred eighty-nine".