449226408649 has 2 divisors, whose sum is σ = 449226408650. Its totient is φ = 449226408648.

The previous prime is 449226408641. The next prime is 449226408721. The reversal of 449226408649 is 946804622944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446801338624 + 2425070025 = 668432^2 + 49245^2 .

It is a cyclic number.

It is not a de Polignac number, because 449226408649 - 2³ = 449226408641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 449226408593 and 449226408602.

It is not a weakly prime, because it can be changed into another prime (449226408641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224613204324 + 224613204325.

It is an arithmetic number, because the mean of its divisors is an integer number (224613204325).

Almost surely, 2^449226408649 is an apocalyptic number.

It is an amenable number.

449226408649 is a deficient number, since it is larger than the sum of its proper divisors (1).

449226408649 is an equidigital number, since it uses as much as digits as its factorization.

449226408649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23887872, while the sum is 58.

The spelling of 449226408649 in words is "four hundred forty-nine billion, two hundred twenty-six million, four hundred eight thousand, six hundred forty-nine".