9723444144 has 80 divisors (see below), whose sum is σ = 26087056512. Its totient is φ = 3118477824.

The previous prime is 9723444139. The next prime is 9723444167. The reversal of 9723444144 is 4414443279.

It is a junction number, because it is equal to n+sod(n) for n = 9723444096 and 9723444105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103132 + ... + 173444.

Almost surely, 2^9723444144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9723444144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13043528256).

9723444144 is an abundant number, since it is smaller than the sum of its proper divisors (16363612368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9723444144 is a wasteful number, since it uses less digits than its factorization.

9723444144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70434 (or 70428 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 9723444144 is about 98607.5257979836. The cubic root of 9723444144 is about 2134.3880198565.

The spelling of 9723444144 in words is "nine billion, seven hundred twenty-three million, four hundred forty-four thousand, one hundred forty-four".