135473975168 has 64 divisors (see below), whose sum is σ = 311175047520. Its totient is φ = 57546424320.

The previous prime is 135473975111. The next prime is 135473975269. The reversal of 135473975168 is 861579374531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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, 567773 + ... + 770268.

Almost surely, 2^135473975168 is an apocalyptic number.

It is an amenable number.

135473975168 is an abundant number, since it is smaller than the sum of its proper divisors (175701072352).

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

135473975168 is a wasteful number, since it uses less digits than its factorization.

135473975168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338175 (or 1338163 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 59.

The spelling of 135473975168 in words is "one hundred thirty-five billion, four hundred seventy-three million, nine hundred seventy-five thousand, one hundred sixty-eight".