445442125489 has 2 divisors, whose sum is σ = 445442125490. Its totient is φ = 445442125488.

The previous prime is 445442125339. The next prime is 445442125523. The reversal of 445442125489 is 984521244544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383201855089 + 62240270400 = 619033^2 + 249480^2 .

It is a cyclic number.

It is not a de Polignac number, because 445442125489 - 2¹⁹ = 445441601201 is a prime.

It is a super-3 number, since 3×445442125489³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (445442126489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222721062744 + 222721062745.

It is an arithmetic number, because the mean of its divisors is an integer number (222721062745).

Almost surely, 2^445442125489 is an apocalyptic number.

It is an amenable number.

445442125489 is a deficient number, since it is larger than the sum of its proper divisors (1).

445442125489 is an equidigital number, since it uses as much as digits as its factorization.

445442125489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7372800, while the sum is 52.

The spelling of 445442125489 in words is "four hundred forty-five billion, four hundred forty-two million, one hundred twenty-five thousand, four hundred eighty-nine".