444555220043 has 6 divisors (see below), whose sum is σ = 488643341172. Its totient is φ = 404141109020.

The previous prime is 444555220009. The next prime is 444555220099. The reversal of 444555220043 is 340022555444.

It is not a de Polignac number, because 444555220043 - 2¹⁶ = 444555154507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444555219979 and 444555220006.

It is not an unprimeable number, because it can be changed into a prime (444555220843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1837004921 + ... + 1837005162.

It is an arithmetic number, because the mean of its divisors is an integer number (81440556862).

Almost surely, 2^444555220043 is an apocalyptic number.

444555220043 is a deficient number, since it is larger than the sum of its proper divisors (44088121129).

444555220043 is a wasteful number, since it uses less digits than its factorization.

444555220043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674010105 (or 3674010094 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 444555220043 its reverse (340022555444), we get a palindrome (784577775487).

The spelling of 444555220043 in words is "four hundred forty-four billion, five hundred fifty-five million, two hundred twenty thousand, forty-three".