9844377121 has 2 divisors, whose sum is σ = 9844377122. Its totient is φ = 9844377120.

The previous prime is 9844377083. The next prime is 9844377133. The reversal of 9844377121 is 1217734489.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8544414096 + 1299963025 = 92436^2 + 36055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9844377121 is a prime.

It is not a weakly prime, because it can be changed into another prime (9844377421) by changing a digit.

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, 4922188560 + 4922188561.

It is an arithmetic number, because the mean of its divisors is an integer number (4922188561).

Almost surely, 2^9844377121 is an apocalyptic number.

It is an amenable number.

9844377121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9844377121 is an equidigital number, since it uses as much as digits as its factorization.

9844377121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 9844377121 is about 99218.8345073656. The cubic root of 9844377121 is about 2143.2002313099.

The spelling of 9844377121 in words is "nine billion, eight hundred forty-four million, three hundred seventy-seven thousand, one hundred twenty-one".