8771422109 has 2 divisors, whose sum is σ = 8771422110. Its totient is φ = 8771422108.

The previous prime is 8771422087. The next prime is 8771422111. The reversal of 8771422109 is 9012241778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5094818884 + 3676603225 = 71378^2 + 60635^2 .

It is a cyclic number.

It is not a de Polignac number, because 8771422109 - 2²⁴ = 8754644893 is a prime.

Together with 8771422111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8771422139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4385711054 + 4385711055.

It is an arithmetic number, because the mean of its divisors is an integer number (4385711055).

Almost surely, 2^8771422109 is an apocalyptic number.

It is an amenable number.

8771422109 is a deficient number, since it is larger than the sum of its proper divisors (1).

8771422109 is an equidigital number, since it uses as much as digits as its factorization.

8771422109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 8771422109 is about 93655.8706595588. The cubic root of 8771422109 is about 2062.3229293666.

The spelling of 8771422109 in words is "eight billion, seven hundred seventy-one million, four hundred twenty-two thousand, one hundred nine".