444545422023481 has 2 divisors, whose sum is σ = 444545422023482. Its totient is φ = 444545422023480.

The previous prime is 444545422023433. The next prime is 444545422023541. The reversal of 444545422023481 is 184320224545444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430668746553600 + 13876675469881 = 20752560^2 + 3725141^2 .

It is a cyclic number.

It is not a de Polignac number, because 444545422023481 - 2⁴⁵ = 409361049934649 is a prime.

It is a super-2 number, since 2×444545422023481² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (444545422023431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222272711011740 + 222272711011741.

It is an arithmetic number, because the mean of its divisors is an integer number (222272711011741).

Almost surely, 2^{444545422023481} is an apocalyptic number.

It is an amenable number.

444545422023481 is a deficient number, since it is larger than the sum of its proper divisors (1).

444545422023481 is an equidigital number, since it uses as much as digits as its factorization.

444545422023481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19660800, while the sum is 52.

The spelling of 444545422023481 in words is "four hundred forty-four trillion, five hundred forty-five billion, four hundred twenty-two million, twenty-three thousand, four hundred eighty-one".