11317418578 has 16 divisors (see below), whose sum is σ = 17006319000. Its totient is φ = 5648656896.

The previous prime is 11317418573. The next prime is 11317418579. The reversal of 11317418578 is 87581471311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7659225289 + 3658193289 = 87517^2 + 60483^2 .

It is not an unprimeable number, because it can be changed into a prime (11317418573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4115548 + ... + 4118296.

Almost surely, 2^11317418578 is an apocalyptic number.

11317418578 is a deficient number, since it is larger than the sum of its proper divisors (5688900422).

11317418578 is a wasteful number, since it uses less digits than its factorization.

11317418578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661.

The product of its digits is 188160, while the sum is 46.

Adding to 11317418578 its reverse (87581471311), we get a palindrome (98898889889).

The spelling of 11317418578 in words is "eleven billion, three hundred seventeen million, four hundred eighteen thousand, five hundred seventy-eight".