4021444134437 has 2 divisors, whose sum is σ = 4021444134438. Its totient is φ = 4021444134436.

The previous prime is 4021444134413. The next prime is 4021444134451. The reversal of 4021444134437 is 7344314441204.

4021444134437 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., 3984339358561 + 37104775876 = 1996081^2 + 192626^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021444134437 - 2⁶ = 4021444134373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4021444134394 and 4021444134403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021444134467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010722067218 + 2010722067219.

It is an arithmetic number, because the mean of its divisors is an integer number (2010722067219).

Almost surely, 2^{4021444134437} is an apocalyptic number.

It is an amenable number.

4021444134437 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021444134437 is an equidigital number, since it uses as much as digits as its factorization.

4021444134437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 41.

The spelling of 4021444134437 in words is "four trillion, twenty-one billion, four hundred forty-four million, one hundred thirty-four thousand, four hundred thirty-seven".