444610642489 has 8 divisors (see below), whose sum is σ = 504012064640. Its totient is φ = 388809306576.

The previous prime is 444610642471. The next prime is 444610642493. The reversal of 444610642489 is 984246016444.

It is a happy number.

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 444610642489 - 2¹⁵ = 444610609721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444610642429) 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 7 ways as a sum of consecutive naturals, for example, 900021297 + ... + 900021790.

It is an arithmetic number, because the mean of its divisors is an integer number (63001508080).

Almost surely, 2^444610642489 is an apocalyptic number.

It is an amenable number.

444610642489 is a deficient number, since it is larger than the sum of its proper divisors (59401422151).

444610642489 is a wasteful number, since it uses less digits than its factorization.

444610642489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800043119.

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 444610642489 in words is "four hundred forty-four billion, six hundred ten million, six hundred forty-two thousand, four hundred eighty-nine".