272209876281081 has 12 divisors (see below), whose sum is σ = 416320987253652. Its totient is φ = 170798353744896.

The previous prime is 272209876281071. The next prime is 272209876281137. The reversal of 272209876281081 is 180182678902272.

272209876281081 is a `hidden beast` number, since 2 + 7 + 2 + 209 + 8 + 76 + 281 + 0 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 90567274355856 + 181642601925225 = 9516684^2 + 13477485^2 .

It is not a de Polignac number, because 272209876281081 - 2⁶ = 272209876281017 is a prime.

It is a super-2 number, since 2×272209876281081² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (272209876281071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 889574758936 + ... + 889574759241.

It is an arithmetic number, because the mean of its divisors is an integer number (34693415604471).

Almost surely, 2^{272209876281081} is an apocalyptic number.

It is an amenable number.

272209876281081 is a deficient number, since it is larger than the sum of its proper divisors (144111110972571).

272209876281081 is a wasteful number, since it uses less digits than its factorization.

272209876281081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779149518200 (or 1779149518197 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 63.

The spelling of 272209876281081 in words is "two hundred seventy-two trillion, two hundred nine billion, eight hundred seventy-six million, two hundred eighty-one thousand, eighty-one".