448642440668 has 48 divisors (see below), whose sum is σ = 850855985280. Its totient is φ = 206180990976.

The previous prime is 448642440667. The next prime is 448642440671. The reversal of 448642440668 is 866044246844.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448642440667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306988 + ... + 1614156.

It is an arithmetic number, because the mean of its divisors is an integer number (17726166360).

Almost surely, 2^448642440668 is an apocalyptic number.

It is an amenable number.

448642440668 is a deficient number, since it is larger than the sum of its proper divisors (402213544612).

448642440668 is a wasteful number, since it uses less digits than its factorization.

448642440668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307694 (or 307692 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 56.

The spelling of 448642440668 in words is "four hundred forty-eight billion, six hundred forty-two million, four hundred forty thousand, six hundred sixty-eight".