4021444444445 has 8 divisors (see below), whose sum is σ = 4825877384544. Its totient is φ = 3217059521424.

The previous prime is 4021444444439. The next prime is 4021444444463. The reversal of 4021444444445 is 5444444441204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021444444445 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021444444396 and 4021444444405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11819759 + ... + 12155228.

It is an arithmetic number, because the mean of its divisors is an integer number (603234673068).

Almost surely, 2^{4021444444445} is an apocalyptic number.

It is an amenable number.

4021444444445 is a deficient number, since it is larger than the sum of its proper divisors (804432940099).

4021444444445 is a wasteful number, since it uses less digits than its factorization.

4021444444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24008539.

The product of its (nonzero) digits is 2621440, while the sum is 44.

Adding to 4021444444445 its reverse (5444444441204), we get a palindrome (9465888885649).

The spelling of 4021444444445 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-five".