10809976187 has 2 divisors, whose sum is σ = 10809976188. Its totient is φ = 10809976186.

The previous prime is 10809976183. The next prime is 10809976189. The reversal of 10809976187 is 78167990801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10809976187 - 2² = 10809976183 is a prime.

Together with 10809976189, it forms a pair of twin primes.

It is a Chen prime.

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, 5404988093 + 5404988094.

It is an arithmetic number, because the mean of its divisors is an integer number (5404988094).

Almost surely, 2^10809976187 is an apocalyptic number.

10809976187 is a deficient number, since it is larger than the sum of its proper divisors (1).

10809976187 is an equidigital number, since it uses as much as digits as its factorization.

10809976187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 56.

The spelling of 10809976187 in words is "ten billion, eight hundred nine million, nine hundred seventy-six thousand, one hundred eighty-seven".