2841091809 has 4 divisors (see below), whose sum is σ = 3788122416. Its totient is φ = 1894061204.

The previous prime is 2841091801. The next prime is 2841091823. The reversal of 2841091809 is 9081901482.

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 2841091809 - 2³ = 2841091801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2841091801) 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, 473515299 + ... + 473515304.

It is an arithmetic number, because the mean of its divisors is an integer number (947030604).

Almost surely, 2^2841091809 is an apocalyptic number.

It is an amenable number.

2841091809 is a deficient number, since it is larger than the sum of its proper divisors (947030607).

2841091809 is an equidigital number, since it uses as much as digits as its factorization.

2841091809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947030606.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 2841091809 is about 53301.8931089694. The cubic root of 2841091809 is about 1416.3212004556.

The spelling of 2841091809 in words is "two billion, eight hundred forty-one million, ninety-one thousand, eight hundred nine".