1244848988161 has 2 divisors, whose sum is σ = 1244848988162. Its totient is φ = 1244848988160.

The previous prime is 1244848988153. The next prime is 1244848988197. The reversal of 1244848988161 is 1618898484421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1012639690000 + 232209298161 = 1006300^2 + 481881^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244848988161 - 2³ = 1244848988153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244848988093 and 1244848988102.

It is not a weakly prime, because it can be changed into another prime (1244848988111) 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, 622424494080 + 622424494081.

It is an arithmetic number, because the mean of its divisors is an integer number (622424494081).

Almost surely, 2^{1244848988161} is an apocalyptic number.

It is an amenable number.

1244848988161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244848988161 is an equidigital number, since it uses as much as digits as its factorization.

1244848988161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28311552, while the sum is 64.

The spelling of 1244848988161 in words is "one trillion, two hundred forty-four billion, eight hundred forty-eight million, nine hundred eighty-eight thousand, one hundred sixty-one".