10809539289 has 8 divisors (see below), whose sum is σ = 16014132320. Its totient is φ = 7206359508.

The previous prime is 10809539227. The next prime is 10809539297. The reversal of 10809539289 is 98293590801.

10809539289 is a `hidden beast` number, since 1 + 0 + 80 + 9 + 539 + 28 + 9 = 666.

It is not a de Polignac number, because 10809539289 - 2⁷ = 10809539161 is a prime.

It is a super-2 number, since 2×10809539289² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10809539189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200176627 + ... + 200176680.

It is an arithmetic number, because the mean of its divisors is an integer number (2001766540).

Almost surely, 2^10809539289 is an apocalyptic number.

It is an amenable number.

10809539289 is a deficient number, since it is larger than the sum of its proper divisors (5204593031).

10809539289 is an equidigital number, since it uses as much as digits as its factorization.

10809539289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400353316 (or 400353310 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 10809539289 in words is "ten billion, eight hundred nine million, five hundred thirty-nine thousand, two hundred eighty-nine".