6489856244448 has 72 divisors (see below), whose sum is σ = 18460531862136. Its totient is φ = 2162698963200.

The previous prime is 6489856244401. The next prime is 6489856244467. The reversal of 6489856244448 is 8444426589846.

6489856244448 is a `hidden beast` number, since 6 + 4 + 8 + 9 + 85 + 62 + 44 + 448 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1989583 + ... + 4115598.

It is an arithmetic number, because the mean of its divisors is an integer number (256396275863).

Almost surely, 2^{6489856244448} is an apocalyptic number.

It is an amenable number.

6489856244448 is an abundant number, since it is smaller than the sum of its proper divisors (11970675617688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6489856244448 is a wasteful number, since it uses less digits than its factorization.

6489856244448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108888 (or 6108877 counting only the distinct ones).

The product of its digits is 1698693120, while the sum is 72.

The spelling of 6489856244448 in words is "six trillion, four hundred eighty-nine billion, eight hundred fifty-six million, two hundred forty-four thousand, four hundred forty-eight".