12532118517917 has 2 divisors, whose sum is σ = 12532118517918. Its totient is φ = 12532118517916.

The previous prime is 12532118517811. The next prime is 12532118517929. The reversal of 12532118517917 is 71971581123521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11643286275076 + 888832242841 = 3412226^2 + 942779^2 .

It is a cyclic number.

It is not a de Polignac number, because 12532118517917 - 2⁸ = 12532118517661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12532118510917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6266059258958 + 6266059258959.

It is an arithmetic number, because the mean of its divisors is an integer number (6266059258959).

Almost surely, 2^{12532118517917} is an apocalyptic number.

It is an amenable number.

12532118517917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12532118517917 is an equidigital number, since it uses as much as digits as its factorization.

12532118517917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1058400, while the sum is 53.

The spelling of 12532118517917 in words is "twelve trillion, five hundred thirty-two billion, one hundred eighteen million, five hundred seventeen thousand, nine hundred seventeen".