135681835612 has 24 divisors (see below), whose sum is σ = 247813314336. Its totient is φ = 64879138368.

The previous prime is 135681835571. The next prime is 135681835621. The reversal of 135681835612 is 216538186531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364578 + ... + 635830.

It is an arithmetic number, because the mean of its divisors is an integer number (10325554764).

Almost surely, 2^135681835612 is an apocalyptic number.

It is an amenable number.

135681835612 is a deficient number, since it is larger than the sum of its proper divisors (112131478724).

135681835612 is a wasteful number, since it uses less digits than its factorization.

135681835612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276717 (or 276715 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The spelling of 135681835612 in words is "one hundred thirty-five billion, six hundred eighty-one million, eight hundred thirty-five thousand, six hundred twelve".