136171869719 has 2 divisors, whose sum is σ = 136171869720. Its totient is φ = 136171869718.

The previous prime is 136171869707. The next prime is 136171869727. The reversal of 136171869719 is 917968171631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136171869719 is a prime.

It is a super-2 number, since 2×136171869719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136171869319) 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, 68085934859 + 68085934860.

It is an arithmetic number, because the mean of its divisors is an integer number (68085934860).

Almost surely, 2^136171869719 is an apocalyptic number.

136171869719 is a deficient number, since it is larger than the sum of its proper divisors (1).

136171869719 is an equidigital number, since it uses as much as digits as its factorization.

136171869719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 59.

The spelling of 136171869719 in words is "one hundred thirty-six billion, one hundred seventy-one million, eight hundred sixty-nine thousand, seven hundred nineteen".