6809549044 has 12 divisors (see below), whose sum is σ = 12327632100. Its totient is φ = 3287368448.

The previous prime is 6809549041. The next prime is 6809549057. The reversal of 6809549044 is 4409459086.

It can be written as a sum of positive squares in 2 ways, for example, as 1798608100 + 5010940944 = 42410^2 + 70788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809549041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29351389 + ... + 29351620.

It is an arithmetic number, because the mean of its divisors is an integer number (1027302675).

Almost surely, 2^6809549044 is an apocalyptic number.

It is an amenable number.

6809549044 is a deficient number, since it is larger than the sum of its proper divisors (5518083056).

6809549044 is a wasteful number, since it uses less digits than its factorization.

6809549044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58703042 (or 58703040 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 6809549044 is about 82519.9917838096. The cubic root of 6809549044 is about 1895.4228739073.

The spelling of 6809549044 in words is "six billion, eight hundred nine million, five hundred forty-nine thousand, forty-four".