11138186812 has 48 divisors (see below), whose sum is σ = 20199614400. Its totient is φ = 5369836032.

The previous prime is 11138186809. The next prime is 11138186833. The reversal of 11138186812 is 21868183111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9335688 + ... + 9336880.

It is an arithmetic number, because the mean of its divisors is an integer number (420825300).

Almost surely, 2^11138186812 is an apocalyptic number.

It is an amenable number.

11138186812 is a deficient number, since it is larger than the sum of its proper divisors (9061427588).

11138186812 is a wasteful number, since it uses less digits than its factorization.

11138186812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 1748 counting only the distinct ones).

The product of its digits is 18432, while the sum is 40.

The spelling of 11138186812 in words is "eleven billion, one hundred thirty-eight million, one hundred eighty-six thousand, eight hundred twelve".