4544112444421 has 24 divisors (see below), whose sum is σ = 5113321301592. Its totient is φ = 4034080512000.

The previous prime is 4544112444407. The next prime is 4544112444427. The reversal of 4544112444421 is 1244442114454.

It can be written as a sum of positive squares in 4 ways, for example, as 662775092100 + 3881337352321 = 814110^2 + 1970111^2 .

It is not a de Polignac number, because 4544112444421 - 2³³ = 4535522509829 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 (4544112444427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1654636 + ... + 3438901.

It is an arithmetic number, because the mean of its divisors is an integer number (213055054233).

Almost surely, 2^{4544112444421} is an apocalyptic number.

It is an amenable number.

4544112444421 is a deficient number, since it is larger than the sum of its proper divisors (569208857171).

4544112444421 is a wasteful number, since it uses less digits than its factorization.

4544112444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093733 (or 5093722 counting only the distinct ones).

The product of its digits is 327680, while the sum is 40.

Adding to 4544112444421 its reverse (1244442114454), we get a palindrome (5788554558875).

The spelling of 4544112444421 in words is "four trillion, five hundred forty-four billion, one hundred twelve million, four hundred forty-four thousand, four hundred twenty-one".