449744563749 has 8 divisors (see below), whose sum is σ = 645787065952. Its totient is φ = 276765885360.

The previous prime is 449744563733. The next prime is 449744563753. The reversal of 449744563749 is 947365447944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 449744563749 - 2⁴ = 449744563733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449744563749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449744563249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5765955907 + ... + 5765955984.

It is an arithmetic number, because the mean of its divisors is an integer number (80723383244).

Almost surely, 2^449744563749 is an apocalyptic number.

It is an amenable number.

449744563749 is a deficient number, since it is larger than the sum of its proper divisors (196042502203).

449744563749 is a wasteful number, since it uses less digits than its factorization.

449744563749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531911907.

The product of its digits is 365783040, while the sum is 66.

The spelling of 449744563749 in words is "four hundred forty-nine billion, seven hundred forty-four million, five hundred sixty-three thousand, seven hundred forty-nine".