449668226089 has 2 divisors, whose sum is σ = 449668226090. Its totient is φ = 449668226088.

The previous prime is 449668226027. The next prime is 449668226141. The reversal of 449668226089 is 980622866944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438667782400 + 11000443689 = 662320^2 + 104883^2 .

It is a cyclic number.

It is not a de Polignac number, because 449668226089 - 2¹⁹ = 449667701801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449668226089.

It is not a weakly prime, because it can be changed into another prime (449668226389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224834113044 + 224834113045.

It is an arithmetic number, because the mean of its divisors is an integer number (224834113045).

Almost surely, 2^449668226089 is an apocalyptic number.

It is an amenable number.

449668226089 is a deficient number, since it is larger than the sum of its proper divisors (1).

449668226089 is an equidigital number, since it uses as much as digits as its factorization.

449668226089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71663616, while the sum is 64.

The spelling of 449668226089 in words is "four hundred forty-nine billion, six hundred sixty-eight million, two hundred twenty-six thousand, eighty-nine".