11944238219 has 2 divisors, whose sum is σ = 11944238220. Its totient is φ = 11944238218.

The previous prime is 11944238191. The next prime is 11944238249. The reversal of 11944238219 is 91283244911.

It is a weak prime.

It is an emirp because it is prime and its reverse (91283244911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11944238219 is a prime.

It is a super-2 number, since 2×11944238219² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11944238219.

It is not a weakly prime, because it can be changed into another prime (11944238249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5972119109 + 5972119110.

It is an arithmetic number, because the mean of its divisors is an integer number (5972119110).

Almost surely, 2^11944238219 is an apocalyptic number.

11944238219 is a deficient number, since it is larger than the sum of its proper divisors (1).

11944238219 is an equidigital number, since it uses as much as digits as its factorization.

11944238219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The spelling of 11944238219 in words is "eleven billion, nine hundred forty-four million, two hundred thirty-eight thousand, two hundred nineteen".