118644224869 has 4 divisors (see below), whose sum is σ = 118647985644. Its totient is φ = 118640464096.

The previous prime is 118644224863. The next prime is 118644224887. The reversal of 118644224869 is 968422446811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115226302500 + 3417922369 = 339450^2 + 58463^2 .

It is a cyclic number.

It is not a de Polignac number, because 118644224869 - 2³ = 118644224861 is a prime.

It is a super-2 number, since 2×118644224869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118644224861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832662 + ... + 1896295.

It is an arithmetic number, because the mean of its divisors is an integer number (29661996411).

Almost surely, 2^118644224869 is an apocalyptic number.

It is an amenable number.

118644224869 is a deficient number, since it is larger than the sum of its proper divisors (3760775).

118644224869 is an equidigital number, since it uses as much as digits as its factorization.

118644224869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760774.

The product of its digits is 5308416, while the sum is 55.

The spelling of 118644224869 in words is "one hundred eighteen billion, six hundred forty-four million, two hundred twenty-four thousand, eight hundred sixty-nine".