808026603409 has 9 divisors (see below), whose sum is σ = 813549873339. Its totient is φ = 802540598400.

The previous prime is 808026603401. The next prime is 808026603451. The reversal of 808026603409 is 904306620808.

It is a happy number.

The square root of 808026603409 is 898903.

It is a perfect power (a square), and thus also a powerful number.

808026603409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6772467025 + 801254136384 = 82295^2 + 895128^2 .

It is not a de Polignac number, because 808026603409 - 2³ = 808026603401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (808026603401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 135731377 + ... + 135737329.

It is an arithmetic number, because the mean of its divisors is an integer number (90394430371).

Almost surely, 2^808026603409 is an apocalyptic number.

808026603409 is the 898903-rd square number.

808026603409 is the 449452-nd centered octagonal number.

It is an amenable number.

808026603409 is a deficient number, since it is larger than the sum of its proper divisors (5523269930).

808026603409 is an frugal number, since it uses more digits than its factorization.

808026603409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208 (or 6104 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 808026603409 in words is "eight hundred eight billion, twenty-six million, six hundred three thousand, four hundred nine".