809676480722 has 18 divisors (see below), whose sum is σ = 1219445965647. Its totient is φ = 403201120224.

The previous prime is 809676480713. The next prime is 809676480779. The reversal of 809676480722 is 227084676908.

It can be written as a sum of positive squares in 5 ways, for example, as 121773779521 + 687902701201 = 348961^2 + 829399^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=636269.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 352491878 + ... + 352494174.

Almost surely, 2^809676480722 is an apocalyptic number.

809676480722 is a deficient number, since it is larger than the sum of its proper divisors (409769484925).

809676480722 is an frugal number, since it uses more digits than its factorization.

809676480722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150 (or 2576 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 809676480722 in words is "eight hundred nine billion, six hundred seventy-six million, four hundred eighty thousand, seven hundred twenty-two".