10809976189 has 2 divisors, whose sum is σ = 10809976190. Its totient is φ = 10809976188.

The previous prime is 10809976187. The next prime is 10809976213. The reversal of 10809976189 is 98167990801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10788353689 + 21622500 = 103867^2 + 4650^2 .

It is a cyclic number.

It is not a de Polignac number, because 10809976189 - 2¹ = 10809976187 is a prime.

Together with 10809976187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10809976183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5404988094 + 5404988095.

It is an arithmetic number, because the mean of its divisors is an integer number (5404988095).

Almost surely, 2^10809976189 is an apocalyptic number.

It is an amenable number.

10809976189 is a deficient number, since it is larger than the sum of its proper divisors (1).

10809976189 is an equidigital number, since it uses as much as digits as its factorization.

10809976189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 58.

The spelling of 10809976189 in words is "ten billion, eight hundred nine million, nine hundred seventy-six thousand, one hundred eighty-nine".