444044445554 has 8 divisors (see below), whose sum is σ = 667922008320. Its totient is φ = 221403776116.

The previous prime is 444044445553. The next prime is 444044445587. The reversal of 444044445554 is 455544440444.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 444044445499 and 444044445508.

It is not an unprimeable number, because it can be changed into a prime (444044445553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309222434 + ... + 309223869.

It is an arithmetic number, because the mean of its divisors is an integer number (83490251040).

Almost surely, 2^444044445554 is an apocalyptic number.

444044445554 is a deficient number, since it is larger than the sum of its proper divisors (223877562766).

444044445554 is a wasteful number, since it uses less digits than its factorization.

444044445554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618446664.

The product of its (nonzero) digits is 8192000, while the sum is 47.

Adding to 444044445554 its reverse (455544440444), we get a palindrome (899588885998).

The spelling of 444044445554 in words is "four hundred forty-four billion, forty-four million, four hundred forty-five thousand, five hundred fifty-four".