444545422023541 has 2 divisors, whose sum is σ = 444545422023542. Its totient is φ = 444545422023540.

The previous prime is 444545422023481. The next prime is 444545422023587. The reversal of 444545422023541 is 145320224545444.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417487260575025 + 27058161448516 = 20432505^2 + 5201746^2 .

It is a cyclic number.

It is not a de Polignac number, because 444545422023541 - 2²⁷ = 444545287805813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444545422923541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222272711011770 + 222272711011771.

It is an arithmetic number, because the mean of its divisors is an integer number (222272711011771).

Almost surely, 2^{444545422023541} is an apocalyptic number.

It is an amenable number.

444545422023541 is a deficient number, since it is larger than the sum of its proper divisors (1).

444545422023541 is an equidigital number, since it uses as much as digits as its factorization.

444545422023541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288000, while the sum is 49.

Adding to 444545422023541 its reverse (145320224545444), we get a palindrome (589865646568985).

The spelling of 444545422023541 in words is "four hundred forty-four trillion, five hundred forty-five billion, four hundred twenty-two million, twenty-three thousand, five hundred forty-one".