136685934863 has 2 divisors, whose sum is σ = 136685934864. Its totient is φ = 136685934862.

The previous prime is 136685934841. The next prime is 136685934883. The reversal of 136685934863 is 368439586631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136685934863 - 2¹² = 136685930767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136685934796 and 136685934805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136685934883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68342967431 + 68342967432.

It is an arithmetic number, because the mean of its divisors is an integer number (68342967432).

Almost surely, 2^136685934863 is an apocalyptic number.

136685934863 is a deficient number, since it is larger than the sum of its proper divisors (1).

136685934863 is an equidigital number, since it uses as much as digits as its factorization.

136685934863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67184640, while the sum is 62.

The spelling of 136685934863 in words is "one hundred thirty-six billion, six hundred eighty-five million, nine hundred thirty-four thousand, eight hundred sixty-three".