449844193237 has 2 divisors, whose sum is σ = 449844193238. Its totient is φ = 449844193236.

The previous prime is 449844193229. The next prime is 449844193241. The reversal of 449844193237 is 732391448944.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 433860659761 + 15983533476 = 658681^2 + 126426^2 .

It is a cyclic number.

It is not a de Polignac number, because 449844193237 - 2³ = 449844193229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449844193037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224922096618 + 224922096619.

It is an arithmetic number, because the mean of its divisors is an integer number (224922096619).

Almost surely, 2^449844193237 is an apocalyptic number.

It is an amenable number.

449844193237 is a deficient number, since it is larger than the sum of its proper divisors (1).

449844193237 is an equidigital number, since it uses as much as digits as its factorization.

449844193237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 58.

The spelling of 449844193237 in words is "four hundred forty-nine billion, eight hundred forty-four million, one hundred ninety-three thousand, two hundred thirty-seven".