7444321289 has 12 divisors (see below), whose sum is σ = 7803936000. Its totient is φ = 7100639304.

The previous prime is 7444321279. The next prime is 7444321319. The reversal of 7444321289 is 9821234447.

It is not a de Polignac number, because 7444321289 - 2⁸ = 7444321033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7444321229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170312 + ... + 209510.

It is an arithmetic number, because the mean of its divisors is an integer number (650328000).

Almost surely, 2^7444321289 is an apocalyptic number.

It is an amenable number.

7444321289 is a deficient number, since it is larger than the sum of its proper divisors (359614711).

7444321289 is a wasteful number, since it uses less digits than its factorization.

7444321289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39604 (or 39581 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 7444321289 is about 86280.4803475270. The cubic root of 7444321289 is about 1952.5779000912.

The spelling of 7444321289 in words is "seven billion, four hundred forty-four million, three hundred twenty-one thousand, two hundred eighty-nine".