444942666729 has 64 divisors (see below), whose sum is σ = 769776768000. Its totient is φ = 251139294720.

The previous prime is 444942666689. The next prime is 444942666737. The reversal of 444942666729 is 927666249444.

It is a happy number.

It is not a de Polignac number, because 444942666729 - 2¹⁷ = 444942535657 is a prime.

It is a super-3 number, since 3×444942666729³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (444942666739) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 335272 + ... + 1001145.

It is an arithmetic number, because the mean of its divisors is an integer number (12027762000).

Almost surely, 2^444942666729 is an apocalyptic number.

It is an amenable number.

444942666729 is a deficient number, since it is larger than the sum of its proper divisors (324834101271).

444942666729 is a wasteful number, since it uses less digits than its factorization.

444942666729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336515 (or 1336509 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 63.

The spelling of 444942666729 in words is "four hundred forty-four billion, nine hundred forty-two million, six hundred sixty-six thousand, seven hundred twenty-nine".