27128728275522 has 16 divisors (see below), whose sum is σ = 54257507591232. Its totient is φ = 9042900918480.

The previous prime is 27128728275499. The next prime is 27128728275527. The reversal of 27128728275522 is 22557282782172.

It is not an unprimeable number, because it can be changed into a prime (27128728275527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11463468 + ... + 13626024.

It is an arithmetic number, because the mean of its divisors is an integer number (3391094224452).

Almost surely, 2^{27128728275522} is an apocalyptic number.

27128728275522 is an abundant number, since it is smaller than the sum of its proper divisors (27128779315710).

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

27128728275522 is a wasteful number, since it uses less digits than its factorization.

27128728275522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253353.

The product of its digits is 35123200, while the sum is 60.

The spelling of 27128728275522 in words is "twenty-seven trillion, one hundred twenty-eight billion, seven hundred twenty-eight million, two hundred seventy-five thousand, five hundred twenty-two".