11318871108609 has 45 divisors (see below), whose sum is σ = 17023970031321. Its totient is φ = 7494701891040.

The previous prime is 11318871108577. The next prime is 11318871108641. The reversal of 11318871108609 is 90680117881311.

The square root of 11318871108609 is 3364353.

It is a perfect power (a square), and thus also a powerful number.

11318871108609 is a `hidden beast` number, since 1 + 1 + 3 + 18 + 8 + 7 + 1 + 10 + 8 + 609 = 666.

It is an interprime number because it is at equal distance from previous prime (11318871108577) and next prime (11318871108641).

It can be written as a sum of positive squares in 4 ways, for example, as 7698710369025 + 3620160739584 = 2774655^2 + 1902672^2 .

It is not a de Polignac number, because 11318871108609 - 2⁵ = 11318871108577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11318871108689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4753829599 + ... + 4753831979.

Almost surely, 2^{11318871108609} is an apocalyptic number.

11318871108609 is the 3364353-rd square number.

11318871108609 is the 1682177-th centered octagonal number.

It is an amenable number.

11318871108609 is a deficient number, since it is larger than the sum of its proper divisors (5705098922712).

11318871108609 is an frugal number, since it uses more digits than its factorization.

11318871108609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 54.

The spelling of 11318871108609 in words is "eleven trillion, three hundred eighteen billion, eight hundred seventy-one million, one hundred eight thousand, six hundred nine".