8011881089 has 2 divisors, whose sum is σ = 8011881090. Its totient is φ = 8011881088.

The previous prime is 8011881083. The next prime is 8011881121. The reversal of 8011881089 is 9801881108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5006977600 + 3004903489 = 70760^2 + 54817^2 .

It is a cyclic number.

It is not a de Polignac number, because 8011881089 - 2¹² = 8011876993 is a prime.

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 (8011881083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4005940544 + 4005940545.

It is an arithmetic number, because the mean of its divisors is an integer number (4005940545).

Almost surely, 2^8011881089 is an apocalyptic number.

It is an amenable number.

8011881089 is a deficient number, since it is larger than the sum of its proper divisors (1).

8011881089 is an equidigital number, since it uses as much as digits as its factorization.

8011881089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 44.

The square root of 8011881089 is about 89509.1117652276. Note that the first 3 decimals coincide. The cubic root of 8011881089 is about 2000.9896010142.

The spelling of 8011881089 in words is "eight billion, eleven million, eight hundred eighty-one thousand, eighty-nine".