10809976181 has 4 divisors (see below), whose sum is σ = 10849865664. Its totient is φ = 10770086700.

The previous prime is 10809976169. The next prime is 10809976183. The reversal of 10809976181 is 18167990801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10809976181 - 2³⁰ = 9736234357 is a prime.

It is a super-2 number, since 2×10809976181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10809976183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19944335 + ... + 19944876.

It is an arithmetic number, because the mean of its divisors is an integer number (2712466416).

Almost surely, 2^10809976181 is an apocalyptic number.

It is an amenable number.

10809976181 is a deficient number, since it is larger than the sum of its proper divisors (39889483).

10809976181 is an equidigital number, since it uses as much as digits as its factorization.

10809976181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39889482.

The product of its (nonzero) digits is 217728, while the sum is 50.

The spelling of 10809976181 in words is "ten billion, eight hundred nine million, nine hundred seventy-six thousand, one hundred eighty-one".