449668226141 has 2 divisors, whose sum is σ = 449668226142. Its totient is φ = 449668226140.

The previous prime is 449668226089. The next prime is 449668226167. The reversal of 449668226141 is 141622866944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260486723641 + 189181502500 = 510379^2 + 434950^2 .

It is a cyclic number.

It is not a de Polignac number, because 449668226141 - 2²² = 449664031837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449668226191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224834113070 + 224834113071.

It is an arithmetic number, because the mean of its divisors is an integer number (224834113071).

Almost surely, 2^449668226141 is an apocalyptic number.

It is an amenable number.

449668226141 is a deficient number, since it is larger than the sum of its proper divisors (1).

449668226141 is an equidigital number, since it uses as much as digits as its factorization.

449668226141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 53.

The spelling of 449668226141 in words is "four hundred forty-nine billion, six hundred sixty-eight million, two hundred twenty-six thousand, one hundred forty-one".