13686825156527 has 2 divisors, whose sum is σ = 13686825156528. Its totient is φ = 13686825156526.

The previous prime is 13686825156463. The next prime is 13686825156581. The reversal of 13686825156527 is 72565152868631.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (72565152868631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13686825156527 - 2⁶ = 13686825156463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13686825156127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6843412578263 + 6843412578264.

It is an arithmetic number, because the mean of its divisors is an integer number (6843412578264).

Almost surely, 2^{13686825156527} is an apocalyptic number.

13686825156527 is a deficient number, since it is larger than the sum of its proper divisors (1).

13686825156527 is an equidigital number, since it uses as much as digits as its factorization.

13686825156527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152000, while the sum is 65.

The spelling of 13686825156527 in words is "thirteen trillion, six hundred eighty-six billion, eight hundred twenty-five million, one hundred fifty-six thousand, five hundred twenty-seven".