11544404018 has 12 divisors (see below), whose sum is σ = 20143807182. Its totient is φ = 4947601680.

The previous prime is 11544404017. The next prime is 11544404021. The reversal of 11544404018 is 81040444511.

It can be written as a sum of positive squares in only one way, i.e., 11543998249 + 405769 = 107443^2 + 637^2 .

It is not an unprimeable number, because it can be changed into a prime (11544404017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58899923 + ... + 58900118.

Almost surely, 2^11544404018 is an apocalyptic number.

11544404018 is a deficient number, since it is larger than the sum of its proper divisors (8599403164).

11544404018 is a wasteful number, since it uses less digits than its factorization.

11544404018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117800057 (or 117800050 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

Adding to 11544404018 its reverse (81040444511), we get a palindrome (92584848529).

The spelling of 11544404018 in words is "eleven billion, five hundred forty-four million, four hundred four thousand, eighteen".