135617784126 has 32 divisors (see below), whose sum is σ = 296282278656. Its totient is φ = 41042280000.

The previous prime is 135617784119. The next prime is 135617784157. The reversal of 135617784126 is 621487716531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299850 + ... + 1400301.

It is an arithmetic number, because the mean of its divisors is an integer number (9258821208).

Almost surely, 2^135617784126 is an apocalyptic number.

135617784126 is an abundant number, since it is smaller than the sum of its proper divisors (160664494530).

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

135617784126 is a wasteful number, since it uses less digits than its factorization.

135617784126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700928.

The product of its digits is 1693440, while the sum is 51.

The spelling of 135617784126 in words is "one hundred thirty-five billion, six hundred seventeen million, seven hundred eighty-four thousand, one hundred twenty-six".