444513243545 has 16 divisors (see below), whose sum is σ = 609725069568. Its totient is φ = 304755627840.

The previous prime is 444513243527. The next prime is 444513243611. The reversal of 444513243545 is 545342315444.

It is a de Polignac number, because none of the positive numbers 2^k-444513243545 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444513243496 and 444513243505.

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 15 ways as a sum of consecutive naturals, for example, 910661 + ... + 1310850.

It is an arithmetic number, because the mean of its divisors is an integer number (38107816848).

Almost surely, 2^444513243545 is an apocalyptic number.

It is an amenable number.

444513243545 is a deficient number, since it is larger than the sum of its proper divisors (165211826023).

444513243545 is a wasteful number, since it uses less digits than its factorization.

444513243545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227240.

The product of its digits is 2304000, while the sum is 44.

Adding to 444513243545 its reverse (545342315444), we get a palindrome (989855558989).

The spelling of 444513243545 in words is "four hundred forty-four billion, five hundred thirteen million, two hundred forty-three thousand, five hundred forty-five".