2144504431015 has 16 divisors (see below), whose sum is σ = 2622080354400. Its totient is φ = 1683156488832.

The previous prime is 2144504430979. The next prime is 2144504431033. The reversal of 2144504431015 is 5101344054412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2144504431015 - 2²⁹ = 2143967560103 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5992396 + ... + 6340174.

It is an arithmetic number, because the mean of its divisors is an integer number (163880022150).

Almost surely, 2^{2144504431015} is an apocalyptic number.

2144504431015 is a deficient number, since it is larger than the sum of its proper divisors (477575923385).

2144504431015 is a wasteful number, since it uses less digits than its factorization.

2144504431015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371106.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 2144504431015 its reverse (5101344054412), we get a palindrome (7245848485427).

The spelling of 2144504431015 in words is "two trillion, one hundred forty-four billion, five hundred four million, four hundred thirty-one thousand, fifteen".