444642246393 has 8 divisors (see below), whose sum is σ = 592987712928. Its totient is φ = 296362472064.

The previous prime is 444642246371. The next prime is 444642246427. The reversal of 444642246393 is 393642246444.

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

It is not a de Polignac number, because 444642246393 - 2¹⁸ = 444641984249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444642246313) 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, 16407255 + ... + 16434332.

It is an arithmetic number, because the mean of its divisors is an integer number (74123464116).

Almost surely, 2^444642246393 is an apocalyptic number.

It is an amenable number.

444642246393 is a deficient number, since it is larger than the sum of its proper divisors (148345466535).

444642246393 is a wasteful number, since it uses less digits than its factorization.

444642246393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32846103.

The product of its digits is 11943936, while the sum is 51.

Adding to 444642246393 its sum of digits (51), we get a palindrome (444642246444).

The spelling of 444642246393 in words is "four hundred forty-four billion, six hundred forty-two million, two hundred forty-six thousand, three hundred ninety-three".