6855044873 has 4 divisors (see below), whose sum is σ = 6855483648. Its totient is φ = 6854606100.

The previous prime is 6855044869. The next prime is 6855044921. The reversal of 6855044873 is 3784405586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6855044873 - 2² = 6855044869 is a prime.

It is a super-2 number, since 2×6855044873² = 93983280421687172258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6855044173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195053 + ... + 227498.

It is an arithmetic number, because the mean of its divisors is an integer number (1713870912).

Almost surely, 2^6855044873 is an apocalyptic number.

It is an amenable number.

6855044873 is a deficient number, since it is larger than the sum of its proper divisors (438775).

6855044873 is a wasteful number, since it uses less digits than its factorization.

6855044873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438774.

The product of its (nonzero) digits is 3225600, while the sum is 50.

The square root of 6855044873 is about 82795.1983692291. The cubic root of 6855044873 is about 1899.6347287661.

The spelling of 6855044873 in words is "six billion, eight hundred fifty-five million, forty-four thousand, eight hundred seventy-three".