135686643636387 has 16 divisors (see below), whose sum is σ = 181314080019072. Its totient is φ = 90258490689600.

The previous prime is 135686643636367. The next prime is 135686643636389. The reversal of 135686643636387 is 783636346686531.

It is not a de Polignac number, because 135686643636387 - 2²⁴ = 135686626859171 is a prime.

It is a super-2 number, since 2×135686643636387² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135686643636389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96847012 + ... + 98238062.

It is an arithmetic number, because the mean of its divisors is an integer number (11332130001192).

Almost surely, 2^{135686643636387} is an apocalyptic number.

135686643636387 is a deficient number, since it is larger than the sum of its proper divisors (45627436382685).

135686643636387 is a wasteful number, since it uses less digits than its factorization.

135686643636387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462658.

The product of its digits is 5643509760, while the sum is 75.

The spelling of 135686643636387 in words is "one hundred thirty-five trillion, six hundred eighty-six billion, six hundred forty-three million, six hundred thirty-six thousand, three hundred eighty-seven".