11444441999 has 8 divisors (see below), whose sum is σ = 11841532560. Its totient is φ = 11047515136.

The previous prime is 11444441963. The next prime is 11444442013. The reversal of 11444441999 is 99914444411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11444441999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444441929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110927 + ... + 187599.

It is an arithmetic number, because the mean of its divisors is an integer number (1480191570).

Almost surely, 2^11444441999 is an apocalyptic number.

11444441999 is a deficient number, since it is larger than the sum of its proper divisors (397090561).

11444441999 is an equidigital number, since it uses as much as digits as its factorization.

11444441999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81849.

The product of its digits is 746496, while the sum is 50.

The spelling of 11444441999 in words is "eleven billion, four hundred forty-four million, four hundred forty-one thousand, nine hundred ninety-nine".