1444321213215 has 16 divisors (see below), whose sum is σ = 2317210718208. Its totient is φ = 768205721376.

The previous prime is 1444321213199. The next prime is 1444321213219. The reversal of 1444321213215 is 5123121234441.

It is not a de Polignac number, because 1444321213215 - 2⁴ = 1444321213199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444321213219) by changing a digit.

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, 131177167 + ... + 131188176.

It is an arithmetic number, because the mean of its divisors is an integer number (144825669888).

Almost surely, 2^{1444321213215} is an apocalyptic number.

1444321213215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1444321213215 is a deficient number, since it is larger than the sum of its proper divisors (872889504993).

1444321213215 is a wasteful number, since it uses less digits than its factorization.

1444321213215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262365718.

The product of its digits is 23040, while the sum is 33.

Adding to 1444321213215 its reverse (5123121234441), we get a palindrome (6567442447656).

The spelling of 1444321213215 in words is "one trillion, four hundred forty-four billion, three hundred twenty-one million, two hundred thirteen thousand, two hundred fifteen".