11717413009 has 3 divisors (see below), whose sum is σ = 11717521257. Its totient is φ = 11717304762.

The previous prime is 11717412991. The next prime is 11717413027. The reversal of 11717413009 is 90031471711.

It is a happy number.

The square root of 11717413009 is 108247.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90031471711 = 237319 ⋅379369.

It is an interprime number because it is at equal distance from previous prime (11717412991) and next prime (11717413027).

It is not a de Polignac number, because 11717413009 - 2²⁵ = 11683858577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11717413909) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 54124 + ... + 162370.

It is an arithmetic number, because the mean of its divisors is an integer number (3905840419).

Almost surely, 2^11717413009 is an apocalyptic number.

11717413009 is the 108247-th square number.

11717413009 is the 54124-th centered octagonal number.

It is an amenable number.

11717413009 is a deficient number, since it is larger than the sum of its proper divisors (108248).

11717413009 is an frugal number, since it uses more digits than its factorization.

11717413009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216494 (or 108247 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 34.

The spelling of 11717413009 in words is "eleven billion, seven hundred seventeen million, four hundred thirteen thousand, nine".