4441143044421 has 16 divisors (see below), whose sum is σ = 6925759134400. Its totient is φ = 2804932448784.

The previous prime is 4441143044407. The next prime is 4441143044453. The reversal of 4441143044421 is 1244403411444.

It is a de Polignac number, because none of the positive numbers 2^k-4441143044421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4441143044621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4328598946 + ... + 4328599971.

It is an arithmetic number, because the mean of its divisors is an integer number (432859945900).

Almost surely, 2^{4441143044421} is an apocalyptic number.

It is an amenable number.

4441143044421 is a deficient number, since it is larger than the sum of its proper divisors (2484616089979).

4441143044421 is a wasteful number, since it uses less digits than its factorization.

4441143044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8657198945 (or 8657198939 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

Adding to 4441143044421 its reverse (1244403411444), we get a palindrome (5685546455865).

The spelling of 4441143044421 in words is "four trillion, four hundred forty-one billion, one hundred forty-three million, forty-four thousand, four hundred twenty-one".