808606000509 has 4 divisors (see below), whose sum is σ = 1078141334016. Its totient is φ = 539070667004.

The previous prime is 808606000481. The next prime is 808606000537. The reversal of 808606000509 is 905000606808.

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 an interprime number because it is at equal distance from previous prime (808606000481) and next prime (808606000537).

It is a cyclic number.

It is not a de Polignac number, because 808606000509 - 2⁷ = 808606000381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808606000589) 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, 134767666749 + ... + 134767666754.

It is an arithmetic number, because the mean of its divisors is an integer number (269535333504).

Almost surely, 2^808606000509 is an apocalyptic number.

It is an amenable number.

808606000509 is a deficient number, since it is larger than the sum of its proper divisors (269535333507).

808606000509 is a wasteful number, since it uses less digits than its factorization.

808606000509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269535333506.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 808606000509 in words is "eight hundred eight billion, six hundred six million, five hundred nine", and thus it is an aban number.