11836212418 has 8 divisors (see below), whose sum is σ = 17788397580. Its totient is φ = 5906746560.

The previous prime is 11836212391. The next prime is 11836212419. The reversal of 11836212418 is 81421263811.

It can be written as a sum of positive squares in 2 ways, for example, as 10171327609 + 1664884809 = 100853^2 + 40803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11836212419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5678523 + ... + 5680606.

Almost surely, 2^11836212418 is an apocalyptic number.

11836212418 is a deficient number, since it is larger than the sum of its proper divisors (5952185162).

11836212418 is a wasteful number, since it uses less digits than its factorization.

11836212418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11359652.

The product of its digits is 18432, while the sum is 37.

The spelling of 11836212418 in words is "eleven billion, eight hundred thirty-six million, two hundred twelve thousand, four hundred eighteen".