445222521260317 has 2 divisors, whose sum is σ = 445222521260318. Its totient is φ = 445222521260316.

The previous prime is 445222521260141. The next prime is 445222521260351. The reversal of 445222521260317 is 713062125222544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357827956828281 + 87394564432036 = 18916341^2 + 9348506^2 .

It is a cyclic number.

It is not a de Polignac number, because 445222521260317 - 2²³ = 445222512871709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445222521261317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222611260630158 + 222611260630159.

It is an arithmetic number, because the mean of its divisors is an integer number (222611260630159).

Almost surely, 2^{445222521260317} is an apocalyptic number.

It is an amenable number.

445222521260317 is a deficient number, since it is larger than the sum of its proper divisors (1).

445222521260317 is an equidigital number, since it uses as much as digits as its factorization.

445222521260317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 445222521260317 in words is "four hundred forty-five trillion, two hundred twenty-two billion, five hundred twenty-one million, two hundred sixty thousand, three hundred seventeen".