4444321231421 has 8 divisors (see below), whose sum is σ = 4711889229600. Its totient is φ = 4180118868720.

The previous prime is 4444321231387. The next prime is 4444321231429. The reversal of 4444321231421 is 1241321234444.

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-4444321231421 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 (4444321231429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841406150 + ... + 841411431.

It is an arithmetic number, because the mean of its divisors is an integer number (588986153700).

Almost surely, 2^{4444321231421} is an apocalyptic number.

It is an amenable number.

4444321231421 is a deficient number, since it is larger than the sum of its proper divisors (267567998179).

4444321231421 is a wasteful number, since it uses less digits than its factorization.

4444321231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682817739.

The product of its digits is 73728, while the sum is 35.

Adding to 4444321231421 its reverse (1241321234444), we get a palindrome (5685642465865).

The spelling of 4444321231421 in words is "four trillion, four hundred forty-four billion, three hundred twenty-one million, two hundred thirty-one thousand, four hundred twenty-one".