9449224721 has 2 divisors, whose sum is σ = 9449224722. Its totient is φ = 9449224720.

The previous prime is 9449224667. The next prime is 9449224739. The reversal of 9449224721 is 1274229449.

9449224721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8305770496 + 1143454225 = 91136^2 + 33815^2 .

It is a cyclic number.

It is not a de Polignac number, because 9449224721 - 2²² = 9445030417 is a prime.

It is not a weakly prime, because it can be changed into another prime (9449124721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4724612360 + 4724612361.

It is an arithmetic number, because the mean of its divisors is an integer number (4724612361).

Almost surely, 2^9449224721 is an apocalyptic number.

It is an amenable number.

9449224721 is a deficient number, since it is larger than the sum of its proper divisors (1).

9449224721 is an equidigital number, since it uses as much as digits as its factorization.

9449224721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 9449224721 is about 97207.1227894335. The cubic root of 9449224721 is about 2114.1318019249.

The spelling of 9449224721 in words is "nine billion, four hundred forty-nine million, two hundred twenty-four thousand, seven hundred twenty-one".