12717912356189 has 2 divisors, whose sum is σ = 12717912356190. Its totient is φ = 12717912356188.

The previous prime is 12717912356183. The next prime is 12717912356251. The reversal of 12717912356189 is 98165321971721.

It is an a-pointer prime, because the next prime (12717912356251) can be obtained adding 12717912356189 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12424708516900 + 293203839289 = 3524870^2 + 541483^2 .

It is a cyclic number.

It is not a de Polignac number, because 12717912356189 - 2¹⁶ = 12717912290653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12717912356183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6358956178094 + 6358956178095.

It is an arithmetic number, because the mean of its divisors is an integer number (6358956178095).

Almost surely, 2^{12717912356189} is an apocalyptic number.

It is an amenable number.

12717912356189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12717912356189 is an equidigital number, since it uses as much as digits as its factorization.

12717912356189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 62.

The spelling of 12717912356189 in words is "twelve trillion, seven hundred seventeen billion, nine hundred twelve million, three hundred fifty-six thousand, one hundred eighty-nine".