444868594139 has 8 divisors (see below), whose sum is σ = 454347178560. Its totient is φ = 435390563776.

The previous prime is 444868594111. The next prime is 444868594231. The reversal of 444868594139 is 931495868444.

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 444868594139 - 2¹² = 444868590043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444868594939) 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, 1758137 + ... + 1995189.

It is an arithmetic number, because the mean of its divisors is an integer number (56793397320).

Almost surely, 2^444868594139 is an apocalyptic number.

444868594139 is a deficient number, since it is larger than the sum of its proper divisors (9478584421).

444868594139 is a wasteful number, since it uses less digits than its factorization.

444868594139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277029.

The product of its digits is 119439360, while the sum is 65.

The spelling of 444868594139 in words is "four hundred forty-four billion, eight hundred sixty-eight million, five hundred ninety-four thousand, one hundred thirty-nine".