44449471872 has 640 divisors, whose sum is σ = 158930402400. Its totient is φ = 12182814720.

The previous prime is 44449471841. The next prime is 44449471873. The reversal of 44449471872 is 27817494444.

44449471872 is a `hidden beast` number, since 4 + 4 + 4 + 494 + 71 + 87 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44449471873) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 43534722 + ... + 43535742.

Almost surely, 2^44449471872 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 44449471872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79465201200).

44449471872 is an abundant number, since it is smaller than the sum of its proper divisors (114480930528).

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

44449471872 is a wasteful number, since it uses less digits than its factorization.

44449471872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1075 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 44449471872 in words is "forty-four billion, four hundred forty-nine million, four hundred seventy-one thousand, eight hundred seventy-two".