1232439915649 has 2 divisors, whose sum is σ = 1232439915650. Its totient is φ = 1232439915648.

The previous prime is 1232439915643. The next prime is 1232439915769. The reversal of 1232439915649 is 9465199342321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1027111306225 + 205328609424 = 1013465^2 + 453132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232439915649 - 2⁹ = 1232439915137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1232439915593 and 1232439915602.

It is not a weakly prime, because it can be changed into another prime (1232439915643) by changing a digit.

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 as a sum of consecutive naturals, namely, 616219957824 + 616219957825.

It is an arithmetic number, because the mean of its divisors is an integer number (616219957825).

Almost surely, 2^{1232439915649} is an apocalyptic number.

It is an amenable number.

1232439915649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232439915649 is an equidigital number, since it uses as much as digits as its factorization.

1232439915649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12597120, while the sum is 58.

The spelling of 1232439915649 in words is "one trillion, two hundred thirty-two billion, four hundred thirty-nine million, nine hundred fifteen thousand, six hundred forty-nine".