448591667609 has 16 divisors (see below), whose sum is σ = 460060679232. Its totient is φ = 437170550208.

The previous prime is 448591667561. The next prime is 448591667759. The reversal of 448591667609 is 906766195844.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448591667609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448591667509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102579947 + ... + 102584319.

It is an arithmetic number, because the mean of its divisors is an integer number (28753792452).

Almost surely, 2^448591667609 is an apocalyptic number.

It is an amenable number.

448591667609 is a deficient number, since it is larger than the sum of its proper divisors (11469011623).

448591667609 is a wasteful number, since it uses less digits than its factorization.

448591667609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9256.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 448591667609 in words is "four hundred forty-eight billion, five hundred ninety-one million, six hundred sixty-seven thousand, six hundred nine".