12380536517 has 2 divisors, whose sum is σ = 12380536518. Its totient is φ = 12380536516.

The previous prime is 12380536507. The next prime is 12380536549. The reversal of 12380536517 is 71563508321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12205609441 + 174927076 = 110479^2 + 13226^2 .

It is a cyclic number.

It is not a de Polignac number, because 12380536517 - 2²⁶ = 12313427653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12380536507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190268258 + 6190268259.

It is an arithmetic number, because the mean of its divisors is an integer number (6190268259).

Almost surely, 2^12380536517 is an apocalyptic number.

It is an amenable number.

12380536517 is a deficient number, since it is larger than the sum of its proper divisors (1).

12380536517 is an equidigital number, since it uses as much as digits as its factorization.

12380536517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 12380536517 in words is "twelve billion, three hundred eighty million, five hundred thirty-six thousand, five hundred seventeen".