806408404609 has 16 divisors (see below), whose sum is σ = 887432169600. Its totient is φ = 730749740688.

The previous prime is 806408404603. The next prime is 806408404651. The reversal of 806408404609 is 906404804608.

It is a happy number.

It is not a de Polignac number, because 806408404609 - 2¹⁵ = 806408371841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806408404603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1512994 + ... + 1975339.

It is an arithmetic number, because the mean of its divisors is an integer number (55464510600).

Almost surely, 2^806408404609 is an apocalyptic number.

It is an amenable number.

806408404609 is a deficient number, since it is larger than the sum of its proper divisors (81023764991).

806408404609 is an equidigital number, since it uses as much as digits as its factorization.

806408404609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488421 (or 3488375 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 49.

The spelling of 806408404609 in words is "eight hundred six billion, four hundred eight million, four hundred four thousand, six hundred nine".