12657536239 has 2 divisors, whose sum is σ = 12657536240. Its totient is φ = 12657536238.

The previous prime is 12657536197. The next prime is 12657536257. The reversal of 12657536239 is 93263575621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12657536239 - 2¹³ = 12657528047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12657536192 and 12657536201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12657536279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6328768119 + 6328768120.

It is an arithmetic number, because the mean of its divisors is an integer number (6328768120).

Almost surely, 2^12657536239 is an apocalyptic number.

12657536239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12657536239 is an equidigital number, since it uses as much as digits as its factorization.

12657536239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 49.

The spelling of 12657536239 in words is "twelve billion, six hundred fifty-seven million, five hundred thirty-six thousand, two hundred thirty-nine".