6806443365 has 28 divisors (see below), whose sum is σ = 12246002604. Its totient is φ = 3630101184.

The previous prime is 6806443361. The next prime is 6806443393. The reversal of 6806443365 is 5633446086.

It can be written as a sum of positive squares in 2 ways, for example, as 2184347169 + 4622096196 = 46737^2 + 67986^2 .

It is not a de Polignac number, because 6806443365 - 2² = 6806443361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6806443365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6806443361) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 930024 + ... + 937313.

Almost surely, 2^6806443365 is an apocalyptic number.

It is an amenable number.

6806443365 is a deficient number, since it is larger than the sum of its proper divisors (5439559239).

6806443365 is an equidigital number, since it uses as much as digits as its factorization.

6806443365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867360 (or 1867345 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The square root of 6806443365 is about 82501.1719007676. The cubic root of 6806443365 is about 1895.1346771357.

The spelling of 6806443365 in words is "six billion, eight hundred six million, four hundred forty-three thousand, three hundred sixty-five".