11783444417 has 2 divisors, whose sum is σ = 11783444418. Its totient is φ = 11783444416.

The previous prime is 11783444411. The next prime is 11783444471. The reversal of 11783444417 is 71444438711.

Together with next prime (11783444471) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9875589376 + 1907855041 = 99376^2 + 43679^2 .

It is a cyclic number.

It is not a de Polignac number, because 11783444417 - 2²⁰ = 11782395841 is a prime.

It is not a weakly prime, because it can be changed into another prime (11783444411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891722208 + 5891722209.

It is an arithmetic number, because the mean of its divisors is an integer number (5891722209).

Almost surely, 2^11783444417 is an apocalyptic number.

It is an amenable number.

11783444417 is a deficient number, since it is larger than the sum of its proper divisors (1).

11783444417 is an equidigital number, since it uses as much as digits as its factorization.

11783444417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 44.

The spelling of 11783444417 in words is "eleven billion, seven hundred eighty-three million, four hundred forty-four thousand, four hundred seventeen".