11444143215 has 16 divisors (see below), whose sum is σ = 19387725408. Its totient is φ = 5744510976.

The previous prime is 11444143201. The next prime is 11444143237. The reversal of 11444143215 is 51234144411.

It is not a de Polignac number, because 11444143215 - 2¹⁰ = 11444142191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22439242 + ... + 22439751.

It is an arithmetic number, because the mean of its divisors is an integer number (1211732838).

Almost surely, 2^11444143215 is an apocalyptic number.

11444143215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11444143215 is a deficient number, since it is larger than the sum of its proper divisors (7943582193).

11444143215 is a wasteful number, since it uses less digits than its factorization.

11444143215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44879018.

The product of its digits is 7680, while the sum is 30.

Adding to 11444143215 its reverse (51234144411), we get a palindrome (62678287626).

The spelling of 11444143215 in words is "eleven billion, four hundred forty-four million, one hundred forty-three thousand, two hundred fifteen".