4809709805 has 16 divisors (see below), whose sum is σ = 5811228144. Its totient is φ = 3821475840.

The previous prime is 4809709781. The next prime is 4809709811. The reversal of 4809709805 is 5089079084.

It can be written as a sum of positive squares in 8 ways, for example, as 10407076 + 4799302729 = 3226^2 + 69277^2 .

It is not a de Polignac number, because 4809709805 - 2¹⁰ = 4809708781 is a prime.

It is a super-3 number, since 3×4809709805³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434297 + ... + 445233.

It is an arithmetic number, because the mean of its divisors is an integer number (363201759).

Almost surely, 2^4809709805 is an apocalyptic number.

It is an amenable number.

4809709805 is a deficient number, since it is larger than the sum of its proper divisors (1001518339).

4809709805 is a wasteful number, since it uses less digits than its factorization.

4809709805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11536.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 4809709805 is about 69352.0713821873. The cubic root of 4809709805 is about 1688.0020043186.

The spelling of 4809709805 in words is "four billion, eight hundred nine million, seven hundred nine thousand, eight hundred five".