6804042549 has 16 divisors (see below), whose sum is σ = 9613041408. Its totient is φ = 4265943552.

The previous prime is 6804042547. The next prime is 6804042577. The reversal of 6804042549 is 9452404086.

It is not a de Polignac number, because 6804042549 - 2¹ = 6804042547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6804042549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6804042547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17409 + ... + 117945.

It is an arithmetic number, because the mean of its divisors is an integer number (600815088).

Almost surely, 2^6804042549 is an apocalyptic number.

It is an amenable number.

6804042549 is a deficient number, since it is larger than the sum of its proper divisors (2808998859).

6804042549 is a wasteful number, since it uses less digits than its factorization.

6804042549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101884.

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 6804042549 is about 82486.6204241633. The cubic root of 6804042549 is about 1894.9118292414.

The spelling of 6804042549 in words is "six billion, eight hundred four million, forty-two thousand, five hundred forty-nine".