449226376169 has 2 divisors, whose sum is σ = 449226376170. Its totient is φ = 449226376168.

The previous prime is 449226376103. The next prime is 449226376211. The reversal of 449226376169 is 961673622944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225993750544 + 223232625625 = 475388^2 + 472475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449226376169 is a prime.

It is a super-2 number, since 2×449226376169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (449226370169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224613188084 + 224613188085.

It is an arithmetic number, because the mean of its divisors is an integer number (224613188085).

Almost surely, 2^449226376169 is an apocalyptic number.

It is an amenable number.

449226376169 is a deficient number, since it is larger than the sum of its proper divisors (1).

449226376169 is an equidigital number, since it uses as much as digits as its factorization.

449226376169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 59.

The spelling of 449226376169 in words is "four hundred forty-nine billion, two hundred twenty-six million, three hundred seventy-six thousand, one hundred sixty-nine".