275721126435168 has 48 divisors (see below), whose sum is σ = 766342542596400. Its totient is φ = 86500745547776.

The previous prime is 275721126435149. The next prime is 275721126435173. The reversal of 275721126435168 is 861534621127572.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84473382693 + ... + 84473385956.

It is an arithmetic number, because the mean of its divisors is an integer number (15965469637425).

Almost surely, 2^{275721126435168} is an apocalyptic number.

It is an amenable number.

275721126435168 is an abundant number, since it is smaller than the sum of its proper divisors (490621416161232).

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

275721126435168 is a wasteful number, since it uses less digits than its factorization.

275721126435168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168946768679 (or 168946768671 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 60.

The spelling of 275721126435168 in words is "two hundred seventy-five trillion, seven hundred twenty-one billion, one hundred twenty-six million, four hundred thirty-five thousand, one hundred sixty-eight".