10809976169 has 2 divisors, whose sum is σ = 10809976170. Its totient is φ = 10809976168.

The previous prime is 10809976159. The next prime is 10809976183. The reversal of 10809976169 is 96167990801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7138222144 + 3671754025 = 84488^2 + 60595^2 .

It is a cyclic number.

It is not a de Polignac number, because 10809976169 - 2¹⁶ = 10809910633 is a prime.

It is a super-2 number, since 2×10809976169² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10809976159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5404988084 + 5404988085.

It is an arithmetic number, because the mean of its divisors is an integer number (5404988085).

Almost surely, 2^10809976169 is an apocalyptic number.

It is an amenable number.

10809976169 is a deficient number, since it is larger than the sum of its proper divisors (1).

10809976169 is an equidigital number, since it uses as much as digits as its factorization.

10809976169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The spelling of 10809976169 in words is "ten billion, eight hundred nine million, nine hundred seventy-six thousand, one hundred sixty-nine".