444623312671045 has 8 divisors (see below), whose sum is σ = 538830628425720. Its totient is φ = 352176881323200.

The previous prime is 444623312671009. The next prime is 444623312671049. The reversal of 444623312671045 is 540176213326444.

It can be written as a sum of positive squares in 4 ways, for example, as 147977322855649 + 296645989815396 = 12164593^2 + 17223414^2 .

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

It is not a de Polignac number, because 444623312671045 - 2⁹ = 444623312670533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444623312670983 and 444623312671001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444623312671049) by changing a digit.

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, 440221101150 + ... + 440221102159.

It is an arithmetic number, because the mean of its divisors is an integer number (67353828553215).

Almost surely, 2^{444623312671045} is an apocalyptic number.

It is an amenable number.

444623312671045 is a deficient number, since it is larger than the sum of its proper divisors (94207315754675).

444623312671045 is a wasteful number, since it uses less digits than its factorization.

444623312671045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880442203415.

The product of its (nonzero) digits is 11612160, while the sum is 52.

Adding to 444623312671045 its reverse (540176213326444), we get a palindrome (984799525997489).

The spelling of 444623312671045 in words is "four hundred forty-four trillion, six hundred twenty-three billion, three hundred twelve million, six hundred seventy-one thousand, forty-five".