8080808080809 has 4 divisors (see below), whose sum is σ = 10774410774416. Its totient is φ = 5387205387204.

The previous prime is 8080808080729. The next prime is 8080808080823. The reversal of 8080808080809 is 9080808080808.

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 not a de Polignac number, because 8080808080809 - 2¹⁷ = 8080807949737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8080808080859) 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, 1346801346799 + ... + 1346801346804.

It is an arithmetic number, because the mean of its divisors is an integer number (2693602693604).

Almost surely, 2^{8080808080809} is an apocalyptic number.

It is an amenable number.

8080808080809 is a deficient number, since it is larger than the sum of its proper divisors (2693602693607).

8080808080809 is a wasteful number, since it uses less digits than its factorization.

8080808080809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693602693606.

The product of its (nonzero) digits is 2359296, while the sum is 57.

Subtracting 8080808080809 from its reverse (9080808080808), we obtain a palindrome (999999999999).

The spelling of 8080808080809 in words is "eight trillion, eighty billion, eight hundred eight million, eighty thousand, eight hundred nine".