8265187091 has 16 divisors (see below), whose sum is σ = 9482304000. Its totient is φ = 7057222848.

The previous prime is 8265187081. The next prime is 8265187097. The reversal of 8265187091 is 1907815628.

It is a cyclic number.

It is not a de Polignac number, because 8265187091 - 2⁶ = 8265187027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8265187097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2191055 + ... + 2194823.

It is an arithmetic number, because the mean of its divisors is an integer number (592644000).

Almost surely, 2^8265187091 is an apocalyptic number.

8265187091 is a deficient number, since it is larger than the sum of its proper divisors (1217116909).

8265187091 is a wasteful number, since it uses less digits than its factorization.

8265187091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898.

The product of its (nonzero) digits is 241920, while the sum is 47.

The square root of 8265187091 is about 90913.0743677718. The cubic root of 8265187091 is about 2021.8591427897.

The spelling of 8265187091 in words is "eight billion, two hundred sixty-five million, one hundred eighty-seven thousand, ninety-one".