9221947738756 has 9 divisors (see below), whose sum is σ = 16138419171511. Its totient is φ = 4610970832612.

The previous prime is 9221947738741. The next prime is 9221947738769. The reversal of 9221947738756 is 6578377491229.

The square root of 9221947738756 is 3036766.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 5314341 + ... + 6832723.

Almost surely, 2^{9221947738756} is an apocalyptic number.

9221947738756 is the 3036766-th square number.

It is an amenable number.

9221947738756 is a deficient number, since it is larger than the sum of its proper divisors (6916471432755).

9221947738756 is an frugal number, since it uses more digits than its factorization.

9221947738756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036770 (or 1518385 counting only the distinct ones).

The product of its digits is 320060160, while the sum is 70.

The spelling of 9221947738756 in words is "nine trillion, two hundred twenty-one billion, nine hundred forty-seven million, seven hundred thirty-eight thousand, seven hundred fifty-six".