445745642427601 has 2 divisors, whose sum is σ = 445745642427602. Its totient is φ = 445745642427600.

The previous prime is 445745642427599. The next prime is 445745642427671. The reversal of 445745642427601 is 106724246547544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355317410518225 + 90428231909376 = 18849865^2 + 9509376^2 .

It is a cyclic number.

It is not a de Polignac number, because 445745642427601 - 2¹ = 445745642427599 is a prime.

Together with 445745642427599, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 445745642427601.

It is not a weakly prime, because it can be changed into another prime (445745642427671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222872821213800 + 222872821213801.

It is an arithmetic number, because the mean of its divisors is an integer number (222872821213801).

Almost surely, 2^{445745642427601} is an apocalyptic number.

It is an amenable number.

445745642427601 is a deficient number, since it is larger than the sum of its proper divisors (1).

445745642427601 is an equidigital number, since it uses as much as digits as its factorization.

445745642427601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180633600, while the sum is 61.

The spelling of 445745642427601 in words is "four hundred forty-five trillion, seven hundred forty-five billion, six hundred forty-two million, four hundred twenty-seven thousand, six hundred one".