135689492784 has 40 divisors (see below), whose sum is σ = 359080736112. Its totient is φ = 44126663680.

The previous prime is 135689492779. The next prime is 135689492801. The reversal of 135689492784 is 487294986531.

It is a happy number.

135689492784 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 34471989 + ... + 34475924.

Almost surely, 2^135689492784 is an apocalyptic number.

It is an amenable number.

135689492784 is an abundant number, since it is smaller than the sum of its proper divisors (223391243328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135689492784 is a wasteful number, since it uses less digits than its factorization.

135689492784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68947965 (or 68947959 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 66.

The spelling of 135689492784 in words is "one hundred thirty-five billion, six hundred eighty-nine million, four hundred ninety-two thousand, seven hundred eighty-four".