444428607623 has 32 divisors (see below), whose sum is σ = 602292257280. Its totient is φ = 316681292160.

The previous prime is 444428607611. The next prime is 444428607673. The reversal of 444428607623 is 326706824444.

It is a cyclic number.

It is not a de Polignac number, because 444428607623 - 2¹⁰ = 444428606599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444428607673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1967588 + ... + 2181801.

It is an arithmetic number, because the mean of its divisors is an integer number (18821633040).

Almost surely, 2^444428607623 is an apocalyptic number.

444428607623 is a deficient number, since it is larger than the sum of its proper divisors (157863649657).

444428607623 is a wasteful number, since it uses less digits than its factorization.

444428607623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149527.

The product of its (nonzero) digits is 6193152, while the sum is 50.

The spelling of 444428607623 in words is "four hundred forty-four billion, four hundred twenty-eight million, six hundred seven thousand, six hundred twenty-three".