4809613209 has 4 divisors (see below), whose sum is σ = 6412817616. Its totient is φ = 3206408804.

The previous prime is 4809613187. The next prime is 4809613213. The reversal of 4809613209 is 9023169084.

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 4809613209 - 2⁹ = 4809612697 is a prime.

It is a super-3 number, since 3×4809613209³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4809613219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801602199 + ... + 801602204.

It is an arithmetic number, because the mean of its divisors is an integer number (1603204404).

Almost surely, 2^4809613209 is an apocalyptic number.

It is an amenable number.

4809613209 is a deficient number, since it is larger than the sum of its proper divisors (1603204407).

4809613209 is a wasteful number, since it uses less digits than its factorization.

4809613209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603204406.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 4809613209 is about 69351.3749611354. The cubic root of 4809613209 is about 1687.9907038910.

The spelling of 4809613209 in words is "four billion, eight hundred nine million, six hundred thirteen thousand, two hundred nine".