6843281851 has 16 divisors (see below), whose sum is σ = 8345305600. Its totient is φ = 5480820288.

The previous prime is 6843281801. The next prime is 6843281903. The reversal of 6843281851 is 1581823486.

It is a cyclic number.

It is not a de Polignac number, because 6843281851 - 2⁹ = 6843281339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6843281801) 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 15 ways as a sum of consecutive naturals, for example, 342711 + ... + 362128.

It is an arithmetic number, because the mean of its divisors is an integer number (521581600).

Almost surely, 2^6843281851 is an apocalyptic number.

6843281851 is a deficient number, since it is larger than the sum of its proper divisors (1502023749).

6843281851 is a wasteful number, since it uses less digits than its factorization.

6843281851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704938.

The product of its digits is 368640, while the sum is 46.

The square root of 6843281851 is about 82724.1310078262. The cubic root of 6843281851 is about 1898.5475373104.

The spelling of 6843281851 in words is "six billion, eight hundred forty-three million, two hundred eighty-one thousand, eight hundred fifty-one".