8080769909 has 4 divisors (see below), whose sum is σ = 8277861900. Its totient is φ = 7883677920.

The previous prime is 8080769903. The next prime is 8080769911. The reversal of 8080769909 is 9099670808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185558884 + 7895211025 = 13622^2 + 88855^2 .

It is a cyclic number.

It is not a de Polignac number, because 8080769909 - 2²⁰ = 8079721333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8080769903) 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, 98545934 + ... + 98546015.

It is an arithmetic number, because the mean of its divisors is an integer number (2069465475).

Almost surely, 2^8080769909 is an apocalyptic number.

It is an amenable number.

8080769909 is a deficient number, since it is larger than the sum of its proper divisors (197091991).

8080769909 is a wasteful number, since it uses less digits than its factorization.

8080769909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197091990.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The square root of 8080769909 is about 89893.1026775692. The cubic root of 8080769909 is about 2006.7082999491.

The spelling of 8080769909 in words is "eight billion, eighty million, seven hundred sixty-nine thousand, nine hundred nine".