6803438209 has 4 divisors (see below), whose sum is σ = 6889557760. Its totient is φ = 6717318660.

The previous prime is 6803438207. The next prime is 6803438231. The reversal of 6803438209 is 9028343086.

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 6803438209 - 2¹ = 6803438207 is a prime.

It is a super-2 number, since 2×6803438209² = 92573542927362255362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6803438207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43059657 + ... + 43059814.

It is an arithmetic number, because the mean of its divisors is an integer number (1722389440).

Almost surely, 2^6803438209 is an apocalyptic number.

It is an amenable number.

6803438209 is a deficient number, since it is larger than the sum of its proper divisors (86119551).

6803438209 is an equidigital number, since it uses as much as digits as its factorization.

6803438209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86119550.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 6803438209 is about 82482.9570820542. The cubic root of 6803438209 is about 1894.8557250988.

The spelling of 6803438209 in words is "six billion, eight hundred three million, four hundred thirty-eight thousand, two hundred nine".