11181744287 has 12 divisors (see below), whose sum is σ = 13009162896. Its totient is φ = 9583005600.

The previous prime is 11181744269. The next prime is 11181744289. The reversal of 11181744287 is 78244718111.

It is not a de Polignac number, because 11181744287 - 2¹⁴ = 11181727903 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 (11181744289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511787 + ... + 533187.

It is an arithmetic number, because the mean of its divisors is an integer number (1084096908).

Almost surely, 2^11181744287 is an apocalyptic number.

11181744287 is a deficient number, since it is larger than the sum of its proper divisors (1827418609).

11181744287 is a wasteful number, since it uses less digits than its factorization.

11181744287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32078 (or 32071 counting only the distinct ones).

The product of its digits is 100352, while the sum is 44.

The spelling of 11181744287 in words is "eleven billion, one hundred eighty-one million, seven hundred forty-four thousand, two hundred eighty-seven".