444221042545 has 8 divisors (see below), whose sum is σ = 609217429824. Its totient is φ = 304608714864.

The previous prime is 444221042501. The next prime is 444221042563. The reversal of 444221042545 is 545240122444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444221042545 - 2³¹ = 442073558897 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 6346014859 + ... + 6346014928.

It is an arithmetic number, because the mean of its divisors is an integer number (76152178728).

Almost surely, 2^444221042545 is an apocalyptic number.

It is an amenable number.

444221042545 is a deficient number, since it is larger than the sum of its proper divisors (164996387279).

444221042545 is a wasteful number, since it uses less digits than its factorization.

444221042545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12692029799.

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 444221042545 its reverse (545240122444), we get a palindrome (989461164989).

The spelling of 444221042545 in words is "four hundred forty-four billion, two hundred twenty-one million, forty-two thousand, five hundred forty-five".