1444208640000 has 1360 divisors, whose sum is σ = 5817690143232. Its totient is φ = 311427072000.

The previous prime is 1444208639959. The next prime is 1444208640029. The reversal of 1444208640000 is 468024441.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 19783679964 + ... + 19783680036.

Almost surely, 2^{1444208640000} is an apocalyptic number.

1444208640000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444208640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2908845071616).

1444208640000 is an abundant number, since it is smaller than the sum of its proper divisors (4373481503232).

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

1444208640000 is an frugal number, since it uses more digits than its factorization.

1444208640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 1444208640000 in words is "one trillion, four hundred forty-four billion, two hundred eight million, six hundred forty thousand".