11144444447 has 2 divisors, whose sum is σ = 11144444448. Its totient is φ = 11144444446.

The previous prime is 11144444393. The next prime is 11144444459. The reversal of 11144444447 is 74444444111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11144444447 - 2⁶ = 11144444383 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11144444447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11144444477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572222223 + 5572222224.

It is an arithmetic number, because the mean of its divisors is an integer number (5572222224).

Almost surely, 2^11144444447 is an apocalyptic number.

11144444447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11144444447 is an equidigital number, since it uses as much as digits as its factorization.

11144444447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114688, while the sum is 38.

Adding to 11144444447 its reverse (74444444111), we get a palindrome (85588888558).

The spelling of 11144444447 in words is "eleven billion, one hundred forty-four million, four hundred forty-four thousand, four hundred forty-seven".