12511438759613 has 2 divisors, whose sum is σ = 12511438759614. Its totient is φ = 12511438759612.

The previous prime is 12511438759553. The next prime is 12511438759619. The reversal of 12511438759613 is 31695783411521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12096358792324 + 415079967289 = 3477982^2 + 644267^2 .

It is a cyclic number.

It is not a de Polignac number, because 12511438759613 - 2¹⁸ = 12511438497469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12511438759619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255719379806 + 6255719379807.

It is an arithmetic number, because the mean of its divisors is an integer number (6255719379807).

Almost surely, 2^{12511438759613} is an apocalyptic number.

It is an amenable number.

12511438759613 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511438759613 is an equidigital number, since it uses as much as digits as its factorization.

12511438759613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5443200, while the sum is 56.

The spelling of 12511438759613 in words is "twelve trillion, five hundred eleven billion, four hundred thirty-eight million, seven hundred fifty-nine thousand, six hundred thirteen".