4444516321 has 4 divisors (see below), whose sum is σ = 5079447232. Its totient is φ = 3809585412.

The previous prime is 4444516313. The next prime is 4444516327. The reversal of 4444516321 is 1236154444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4444516321 - 2³ = 4444516313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444516327) 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, 317465445 + ... + 317465458.

It is an arithmetic number, because the mean of its divisors is an integer number (1269861808).

Almost surely, 2^4444516321 is an apocalyptic number.

It is an amenable number.

4444516321 is a deficient number, since it is larger than the sum of its proper divisors (634930911).

4444516321 is an equidigital number, since it uses as much as digits as its factorization.

4444516321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634930910.

The product of its digits is 46080, while the sum is 34.

The square root of 4444516321 is about 66667.2057386538. The cubic root of 4444516321 is about 1644.1502459807.

The spelling of 4444516321 in words is "four billion, four hundred forty-four million, five hundred sixteen thousand, three hundred twenty-one".