135634682389 has 2 divisors, whose sum is σ = 135634682390. Its totient is φ = 135634682388.

The previous prime is 135634682387. The next prime is 135634682401. The reversal of 135634682389 is 983286436531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123652096164 + 11982586225 = 351642^2 + 109465^2 .

It is a cyclic number.

It is not a de Polignac number, because 135634682389 - 2¹ = 135634682387 is a prime.

Together with 135634682387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135634682383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67817341194 + 67817341195.

It is an arithmetic number, because the mean of its divisors is an integer number (67817341195).

Almost surely, 2^135634682389 is an apocalyptic number.

It is an amenable number.

135634682389 is a deficient number, since it is larger than the sum of its proper divisors (1).

135634682389 is an equidigital number, since it uses as much as digits as its factorization.

135634682389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22394880, while the sum is 58.

The spelling of 135634682389 in words is "one hundred thirty-five billion, six hundred thirty-four million, six hundred eighty-two thousand, three hundred eighty-nine".