136836025825487 has 2 divisors, whose sum is σ = 136836025825488. Its totient is φ = 136836025825486.

The previous prime is 136836025825481. The next prime is 136836025825511. The reversal of 136836025825487 is 784528520638631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136836025825487 - 2³² = 136831730858191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136836025825481) 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, 68418012912743 + 68418012912744.

It is an arithmetic number, because the mean of its divisors is an integer number (68418012912744).

Almost surely, 2^{136836025825487} is an apocalyptic number.

136836025825487 is a deficient number, since it is larger than the sum of its proper divisors (1).

136836025825487 is an equidigital number, since it uses as much as digits as its factorization.

136836025825487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 464486400, while the sum is 68.

The spelling of 136836025825487 in words is "one hundred thirty-six trillion, eight hundred thirty-six billion, twenty-five million, eight hundred twenty-five thousand, four hundred eighty-seven".