2144320441444 has 6 divisors (see below), whose sum is σ = 3752560772534. Its totient is φ = 1072160220720.

The previous prime is 2144320441429. The next prime is 2144320441477. The reversal of 2144320441444 is 4441440234412.

It can be written as a sum of positive squares in only one way, i.e., 2086181587044 + 58138854400 = 1444362^2 + 241120^2 .

It is a super-2 number, since 2×2144320441444² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268040055177 + ... + 268040055184.

Almost surely, 2^{2144320441444} is an apocalyptic number.

It is an amenable number.

2144320441444 is a deficient number, since it is larger than the sum of its proper divisors (1608240331090).

2144320441444 is a wasteful number, since it uses less digits than its factorization.

2144320441444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536080110365 (or 536080110363 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 37.

Adding to 2144320441444 its reverse (4441440234412), we get a palindrome (6585760675856).

The spelling of 2144320441444 in words is "two trillion, one hundred forty-four billion, three hundred twenty million, four hundred forty-one thousand, four hundred forty-four".