11085715871 has 4 divisors (see below), whose sum is σ = 11085979200. Its totient is φ = 11085452544.

The previous prime is 11085715829. The next prime is 11085715913. The reversal of 11085715871 is 17851758011.

It is a happy number.

11085715871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11085715829) and next prime (11085715913).

It is a cyclic number.

It is not a de Polignac number, because 11085715871 - 2⁶ = 11085715807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11085715171) 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 in 3 ways as a sum of consecutive naturals, for example, 52751 + ... + 157968.

It is an arithmetic number, because the mean of its divisors is an integer number (2771494800).

Almost surely, 2^11085715871 is an apocalyptic number.

11085715871 is a deficient number, since it is larger than the sum of its proper divisors (263329).

11085715871 is an equidigital number, since it uses as much as digits as its factorization.

11085715871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263328.

The product of its (nonzero) digits is 78400, while the sum is 44.

The spelling of 11085715871 in words is "eleven billion, eighty-five million, seven hundred fifteen thousand, eight hundred seventy-one".