6855164844 has 24 divisors (see below), whose sum is σ = 17449510848. Its totient is φ = 2077322640.

The previous prime is 6855164843. The next prime is 6855164851. The reversal of 6855164844 is 4484615586.

It is not an unprimeable number, because it can be changed into a prime (6855164843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25966402 + ... + 25966665.

It is an arithmetic number, because the mean of its divisors is an integer number (727062952).

Almost surely, 2^6855164844 is an apocalyptic number.

It is an amenable number.

6855164844 is an abundant number, since it is smaller than the sum of its proper divisors (10594346004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6855164844 is a wasteful number, since it uses less digits than its factorization.

6855164844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51933085 (or 51933083 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 51.

The square root of 6855164844 is about 82795.9228706342. The cubic root of 6855164844 is about 1899.6458106167.

The spelling of 6855164844 in words is "six billion, eight hundred fifty-five million, one hundred sixty-four thousand, eight hundred forty-four".