136856869199 has 2 divisors, whose sum is σ = 136856869200. Its totient is φ = 136856869198.

The previous prime is 136856869169. The next prime is 136856869231. The reversal of 136856869199 is 991968658631.

It is a weak prime.

It is an emirp because it is prime and its reverse (991968658631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136856869199 - 2⁸ = 136856868943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136856869169) 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, 68428434599 + 68428434600.

It is an arithmetic number, because the mean of its divisors is an integer number (68428434600).

Almost surely, 2^136856869199 is an apocalyptic number.

136856869199 is a deficient number, since it is larger than the sum of its proper divisors (1).

136856869199 is an equidigital number, since it uses as much as digits as its factorization.

136856869199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151165440, while the sum is 71.

The spelling of 136856869199 in words is "one hundred thirty-six billion, eight hundred fifty-six million, eight hundred sixty-nine thousand, one hundred ninety-nine".