808424408209 has 8 divisors (see below), whose sum is σ = 881938376352. Its totient is φ = 734913913440.

The previous prime is 808424408171. The next prime is 808424408293. The reversal of 808424408209 is 902804424808.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 808424408209 - 2¹⁷ = 808424277137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (808424438209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369204 + ... + 1324069.

It is an arithmetic number, because the mean of its divisors is an integer number (110242297044).

Almost surely, 2^808424408209 is an apocalyptic number.

It is an amenable number.

808424408209 is a deficient number, since it is larger than the sum of its proper divisors (73513968143).

808424408209 is a wasteful number, since it uses less digits than its factorization.

808424408209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736687.

The product of its (nonzero) digits is 1179648, while the sum is 49.

The spelling of 808424408209 in words is "eight hundred eight billion, four hundred twenty-four million, four hundred eight thousand, two hundred nine".