6803865281 has 4 divisors (see below), whose sum is σ = 6812853972. Its totient is φ = 6794876592.

The previous prime is 6803865223. The next prime is 6803865317. The reversal of 6803865281 is 1825683086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4162830400 + 2641034881 = 64520^2 + 51391^2 .

It is a cyclic number.

It is not a de Polignac number, because 6803865281 - 2⁶ = 6803865217 is a prime.

It is a super-2 number, since 2×6803865281² = 92585165523994417922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6803865181) 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, 4493210 + ... + 4494723.

It is an arithmetic number, because the mean of its divisors is an integer number (1703213493).

Almost surely, 2^6803865281 is an apocalyptic number.

It is an amenable number.

6803865281 is a deficient number, since it is larger than the sum of its proper divisors (8988691).

6803865281 is an equidigital number, since it uses as much as digits as its factorization.

6803865281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988690.

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 6803865281 is about 82485.5458913863. The cubic root of 6803865281 is about 1894.8953728409.

The spelling of 6803865281 in words is "six billion, eight hundred three million, eight hundred sixty-five thousand, two hundred eighty-one".