6738444889 has 16 divisors (see below), whose sum is σ = 7467526080. Its totient is φ = 6029335360.

The previous prime is 6738444871. The next prime is 6738444917. The reversal of 6738444889 is 9884448376.

It is a cyclic number.

It is not a de Polignac number, because 6738444889 - 2⁷ = 6738444761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6738444809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231879 + ... + 259315.

It is an arithmetic number, because the mean of its divisors is an integer number (466720380).

Almost surely, 2^6738444889 is an apocalyptic number.

It is an amenable number.

6738444889 is a deficient number, since it is larger than the sum of its proper divisors (729081191).

6738444889 is a wasteful number, since it uses less digits than its factorization.

6738444889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27800.

The product of its digits is 37158912, while the sum is 61.

The square root of 6738444889 is about 82088.0313383139. The cubic root of 6738444889 is about 1888.8025494408.

The spelling of 6738444889 in words is "six billion, seven hundred thirty-eight million, four hundred forty-four thousand, eight hundred eighty-nine".