6449317738824 has 128 divisors (see below), whose sum is σ = 17316843033600. Its totient is φ = 1997074222080.

The previous prime is 6449317738811. The next prime is 6449317738933. The reversal of 6449317738824 is 4288377139446.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2868742 + ... + 4596554.

It is an arithmetic number, because the mean of its divisors is an integer number (135287836200).

Almost surely, 2^{6449317738824} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6449317738824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8658421516800).

6449317738824 is an abundant number, since it is smaller than the sum of its proper divisors (10867525294776).

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

6449317738824 is a wasteful number, since it uses less digits than its factorization.

6449317738824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728055 (or 1728051 counting only the distinct ones).

The product of its digits is 195084288, while the sum is 66.

The spelling of 6449317738824 in words is "six trillion, four hundred forty-nine billion, three hundred seventeen million, seven hundred thirty-eight thousand, eight hundred twenty-four".