12685063397 has 2 divisors, whose sum is σ = 12685063398. Its totient is φ = 12685063396.

The previous prime is 12685063379. The next prime is 12685063429. The reversal of 12685063397 is 79336058621.

Together with previous prime (12685063379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10517322916 + 2167740481 = 102554^2 + 46559^2 .

It is a cyclic number.

It is not a de Polignac number, because 12685063397 - 2⁸ = 12685063141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12685063327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342531698 + 6342531699.

It is an arithmetic number, because the mean of its divisors is an integer number (6342531699).

Almost surely, 2^12685063397 is an apocalyptic number.

It is an amenable number.

12685063397 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685063397 is an equidigital number, since it uses as much as digits as its factorization.

12685063397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 12685063397 in words is "twelve billion, six hundred eighty-five million, sixty-three thousand, three hundred ninety-seven".