448889338689 has 32 divisors (see below), whose sum is σ = 691406461440. Its totient is φ = 256025452800.

The previous prime is 448889338661. The next prime is 448889338727. The reversal of 448889338689 is 986833988844.

It is a de Polignac number, because none of the positive numbers 2^k-448889338689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (448889338609) 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 in 31 ways as a sum of consecutive naturals, for example, 6574054 + ... + 6641984.

It is an arithmetic number, because the mean of its divisors is an integer number (21606451920).

Almost surely, 2^448889338689 is an apocalyptic number.

It is an amenable number.

448889338689 is a deficient number, since it is larger than the sum of its proper divisors (242517122751).

448889338689 is a wasteful number, since it uses less digits than its factorization.

448889338689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79741.

The product of its digits is 2293235712, while the sum is 78.

The spelling of 448889338689 in words is "four hundred forty-eight billion, eight hundred eighty-nine million, three hundred thirty-eight thousand, six hundred eighty-nine".