4044040004321 has 2 divisors, whose sum is σ = 4044040004322. Its totient is φ = 4044040004320.

The previous prime is 4044040004201. The next prime is 4044040004387. The reversal of 4044040004321 is 1234000404404.

It is a happy number.

4044040004321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3920146564096 + 123893440225 = 1979936^2 + 351985^2 .

It is a cyclic number.

It is not a de Polignac number, because 4044040004321 - 2¹⁸ = 4044039742177 is a prime.

It is not a weakly prime, because it can be changed into another prime (4044040004821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022020002160 + 2022020002161.

It is an arithmetic number, because the mean of its divisors is an integer number (2022020002161).

Almost surely, 2^{4044040004321} is an apocalyptic number.

It is an amenable number.

4044040004321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044040004321 is an equidigital number, since it uses as much as digits as its factorization.

4044040004321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 4044040004321 its reverse (1234000404404), we get a palindrome (5278040408725).

The spelling of 4044040004321 in words is "four trillion, forty-four billion, forty million, four thousand, three hundred twenty-one".