449576553216 has 144 divisors (see below), whose sum is σ = 1367874756864. Its totient is φ = 128411676672.

The previous prime is 449576553199. The next prime is 449576553247. The reversal of 449576553216 is 612355675944.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 21079390 + ... + 21100706.

It is an arithmetic number, because the mean of its divisors is an integer number (9499130256).

Almost surely, 2^449576553216 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 449576553216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683937378432).

449576553216 is an abundant number, since it is smaller than the sum of its proper divisors (918298203648).

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

449576553216 is a wasteful number, since it uses less digits than its factorization.

449576553216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25266 (or 25252 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 57.

The spelling of 449576553216 in words is "four hundred forty-nine billion, five hundred seventy-six million, five hundred fifty-three thousand, two hundred sixteen".