439361111489 has 2 divisors, whose sum is σ = 439361111490. Its totient is φ = 439361111488.

The previous prime is 439361111479. The next prime is 439361111491. The reversal of 439361111489 is 984111163934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435313607089 + 4047504400 = 659783^2 + 63620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439361111489 is a prime.

It is a Sophie Germain prime.

Together with 439361111491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (439361111459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219680555744 + 219680555745.

It is an arithmetic number, because the mean of its divisors is an integer number (219680555745).

Almost surely, 2^439361111489 is an apocalyptic number.

It is an amenable number.

439361111489 is a deficient number, since it is larger than the sum of its proper divisors (1).

439361111489 is an equidigital number, since it uses as much as digits as its factorization.

439361111489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 50.

The spelling of 439361111489 in words is "four hundred thirty-nine billion, three hundred sixty-one million, one hundred eleven thousand, four hundred eighty-nine".