9944254564 has 6 divisors (see below), whose sum is σ = 17402445494. Its totient is φ = 4972127280.

The previous prime is 9944254543. The next prime is 9944254591. The reversal of 9944254564 is 4654524499.

It can be written as a sum of positive squares in only one way, i.e., 9387672100 + 556582464 = 96890^2 + 23592^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243031817 + ... + 1243031824.

Almost surely, 2^9944254564 is an apocalyptic number.

It is an amenable number.

9944254564 is a deficient number, since it is larger than the sum of its proper divisors (7458190930).

9944254564 is a wasteful number, since it uses less digits than its factorization.

9944254564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486063645 (or 2486063643 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 52.

The square root of 9944254564 is about 99720.8832893091. The cubic root of 9944254564 is about 2150.4238979576.

The spelling of 9944254564 in words is "nine billion, nine hundred forty-four million, two hundred fifty-four thousand, five hundred sixty-four".