445427783641745 has 32 divisors (see below), whose sum is σ = 556869251393280. Its totient is φ = 341734942080000.

The previous prime is 445427783641727. The next prime is 445427783641759. The reversal of 445427783641745 is 547146387724544.

It is a happy number.

It is not a de Polignac number, because 445427783641745 - 2¹⁴ = 445427783625361 is a prime.

It is a super-2 number, since 2×445427783641745² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174728885 + ... + 177259805.

It is an arithmetic number, because the mean of its divisors is an integer number (17402164106040).

Almost surely, 2^{445427783641745} is an apocalyptic number.

It is an amenable number.

445427783641745 is a deficient number, since it is larger than the sum of its proper divisors (111441467751535).

445427783641745 is a wasteful number, since it uses less digits than its factorization.

445427783641745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545577.

The product of its digits is 2528870400, while the sum is 71.

The spelling of 445427783641745 in words is "four hundred forty-five trillion, four hundred twenty-seven billion, seven hundred eighty-three million, six hundred forty-one thousand, seven hundred forty-five".