135435979188 has 36 divisors (see below), whose sum is σ = 342600085828. Its totient is φ = 45112619520.

The previous prime is 135435979187. The next prime is 135435979207. The reversal of 135435979188 is 881979534531.

135435979188 is a `hidden beast` number, since 1 + 3 + 543 + 5 + 9 + 7 + 9 + 1 + 88 = 666.

135435979188 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 75855074724 + 59580904464 = 275418^2 + 244092^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×135435979188² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135435979183) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1312381 + ... + 1411812.

Almost surely, 2^135435979188 is an apocalyptic number.

135435979188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

135435979188 is an abundant number, since it is smaller than the sum of its proper divisors (207164106640).

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

135435979188 is a wasteful number, since it uses less digits than its factorization.

135435979188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725584 (or 2725579 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 135435979188 in words is "one hundred thirty-five billion, four hundred thirty-five million, nine hundred seventy-nine thousand, one hundred eighty-eight".