12380536717 has 2 divisors, whose sum is σ = 12380536718. Its totient is φ = 12380536716.

The previous prime is 12380536657. The next prime is 12380536723. The reversal of 12380536717 is 71763508321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8832428361 + 3548108356 = 93981^2 + 59566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12380536717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12380536517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190268358 + 6190268359.

It is an arithmetic number, because the mean of its divisors is an integer number (6190268359).

Almost surely, 2^12380536717 is an apocalyptic number.

It is an amenable number.

12380536717 is a deficient number, since it is larger than the sum of its proper divisors (1).

12380536717 is an equidigital number, since it uses as much as digits as its factorization.

12380536717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 12380536717 in words is "twelve billion, three hundred eighty million, five hundred thirty-six thousand, seven hundred seventeen".