11673818489 has 4 divisors (see below), whose sum is σ = 11678662800. Its totient is φ = 11668974180.

The previous prime is 11673818483. The next prime is 11673818539. The reversal of 11673818489 is 98481837611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98481837611 = 787 ⋅125135753.

It is a cyclic number.

It is not a de Polignac number, because 11673818489 - 2¹⁶ = 11673752953 is a prime.

It is a super-2 number, since 2×11673818489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11673818483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2418539 + ... + 2423360.

It is an arithmetic number, because the mean of its divisors is an integer number (2919665700).

Almost surely, 2^11673818489 is an apocalyptic number.

It is an amenable number.

11673818489 is a deficient number, since it is larger than the sum of its proper divisors (4844311).

11673818489 is an equidigital number, since it uses as much as digits as its factorization.

11673818489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844310.

The product of its digits is 2322432, while the sum is 56.

The spelling of 11673818489 in words is "eleven billion, six hundred seventy-three million, eight hundred eighteen thousand, four hundred eighty-nine".