444623244466561 has 8 divisors (see below), whose sum is σ = 470777888198880. Its totient is φ = 418468637982528.

The previous prime is 444623244466543. The next prime is 444623244466613. The reversal of 444623244466561 is 165664442326444.

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 444623244466561 - 2⁷ = 444623244466433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444623244466561.

It is not an unprimeable number, because it can be changed into a prime (444623244466861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17463270 + ... + 34557376.

It is an arithmetic number, because the mean of its divisors is an integer number (58847236024860).

Almost surely, 2^{444623244466561} is an apocalyptic number.

It is an amenable number.

444623244466561 is a deficient number, since it is larger than the sum of its proper divisors (26154643732319).

444623244466561 is a wasteful number, since it uses less digits than its factorization.

444623244466561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18624143.

The product of its digits is 318504960, while the sum is 61.

The spelling of 444623244466561 in words is "four hundred forty-four trillion, six hundred twenty-three billion, two hundred forty-four million, four hundred sixty-six thousand, five hundred sixty-one".