544123321399 has 16 divisors (see below), whose sum is σ = 651751008768. Its totient is φ = 444148242912.

The previous prime is 544123321297. The next prime is 544123321409. The reversal of 544123321399 is 993123321445.

It is a cyclic number.

It is not a de Polignac number, because 544123321399 - 2⁹ = 544123320887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544123321099) by changing a digit.

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, 7407612 + ... + 7480705.

It is an arithmetic number, because the mean of its divisors is an integer number (40734438048).

Almost surely, 2^544123321399 is an apocalyptic number.

544123321399 is a deficient number, since it is larger than the sum of its proper divisors (107627687369).

544123321399 is a wasteful number, since it uses less digits than its factorization.

544123321399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14888574.

The product of its digits is 699840, while the sum is 46.

Adding to 544123321399 its sum of digits (46), we get a palindrome (544123321445).

The spelling of 544123321399 in words is "five hundred forty-four billion, one hundred twenty-three million, three hundred twenty-one thousand, three hundred ninety-nine".