544223124321 has 16 divisors (see below), whose sum is σ = 726065518464. Its totient is φ = 362598148224.

The previous prime is 544223124283. The next prime is 544223124323. The reversal of 544223124321 is 123421322445.

It is a happy number.

It is not a de Polignac number, because 544223124321 - 2³⁰ = 543149382497 is a prime.

It is a super-2 number, since 2×544223124321² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (544223124323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65620251 + ... + 65628543.

It is an arithmetic number, because the mean of its divisors is an integer number (45379094904).

Almost surely, 2^544223124321 is an apocalyptic number.

It is an amenable number.

544223124321 is a deficient number, since it is larger than the sum of its proper divisors (181842394143).

544223124321 is a wasteful number, since it uses less digits than its factorization.

544223124321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760.

The product of its digits is 46080, while the sum is 33.

Adding to 544223124321 its reverse (123421322445), we get a palindrome (667644446766).

The spelling of 544223124321 in words is "five hundred forty-four billion, two hundred twenty-three million, one hundred twenty-four thousand, three hundred twenty-one".