12309983944417 has 2 divisors, whose sum is σ = 12309983944418. Its totient is φ = 12309983944416.

The previous prime is 12309983944367. The next prime is 12309983944519. The reversal of 12309983944417 is 71444938990321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12163849004241 + 146134940176 = 3487671^2 + 382276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12309983944417 is a prime.

It is not a weakly prime, because it can be changed into another prime (12309983941417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6154991972208 + 6154991972209.

It is an arithmetic number, because the mean of its divisors is an integer number (6154991972209).

Almost surely, 2^{12309983944417} is an apocalyptic number.

It is an amenable number.

12309983944417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12309983944417 is an equidigital number, since it uses as much as digits as its factorization.

12309983944417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 12309983944417 in words is "twelve trillion, three hundred nine billion, nine hundred eighty-three million, nine hundred forty-four thousand, four hundred seventeen".