449015913569 has 2 divisors, whose sum is σ = 449015913570. Its totient is φ = 449015913568.

The previous prime is 449015913497. The next prime is 449015913623. The reversal of 449015913569 is 965319510944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337459913569 + 111556000000 = 580913^2 + 334000^2 .

It is a cyclic number.

It is not a de Polignac number, because 449015913569 - 2¹⁶ = 449015848033 is a prime.

It is a super-2 number, since 2×449015913569² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (449015613569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224507956784 + 224507956785.

It is an arithmetic number, because the mean of its divisors is an integer number (224507956785).

Almost surely, 2^449015913569 is an apocalyptic number.

It is an amenable number.

449015913569 is a deficient number, since it is larger than the sum of its proper divisors (1).

449015913569 is an equidigital number, since it uses as much as digits as its factorization.

449015913569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5248800, while the sum is 56.

The spelling of 449015913569 in words is "four hundred forty-nine billion, fifteen million, nine hundred thirteen thousand, five hundred sixty-nine".