809452529522 has 54 divisors (see below), whose sum is σ = 1529635417389. Its totient is φ = 320177173680.

The previous prime is 809452529401. The next prime is 809452529537. The reversal of 809452529522 is 225925254908.

It can be written as a sum of positive squares in 2 ways, for example, as 692105861041 + 117346668481 = 831929^2 + 342559^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=636181.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 115781447 + ... + 115788437.

Almost surely, 2^809452529522 is an apocalyptic number.

809452529522 is a deficient number, since it is larger than the sum of its proper divisors (720182887867).

809452529522 is an frugal number, since it uses more digits than its factorization.

809452529522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14024 (or 7013 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 53.

The spelling of 809452529522 in words is "eight hundred nine billion, four hundred fifty-two million, five hundred twenty-nine thousand, five hundred twenty-two".