11733086891 has 16 divisors (see below), whose sum is σ = 12768016800. Its totient is φ = 10744876800.

The previous prime is 11733086867. The next prime is 11733086957. The reversal of 11733086891 is 19868033711.

It is a cyclic number.

It is not a de Polignac number, because 11733086891 - 2¹⁴ = 11733070507 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11733086291) 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, 15821 + ... + 154001.

It is an arithmetic number, because the mean of its divisors is an integer number (798001050).

Almost surely, 2^11733086891 is an apocalyptic number.

11733086891 is a deficient number, since it is larger than the sum of its proper divisors (1034929909).

11733086891 is a wasteful number, since it uses less digits than its factorization.

11733086891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138350.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 11733086891 in words is "eleven billion, seven hundred thirty-three million, eighty-six thousand, eight hundred ninety-one".