272128205571 has 8 divisors (see below), whose sum is σ = 365010288384. Its totient is φ = 180332463240.

The previous prime is 272128205561. The next prime is 272128205627. The reversal of 272128205571 is 175502821272.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 272128205571 - 2¹⁰ = 272128204547 is a prime.

It is a super-3 number, since 3×272128205571³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (272128205521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271584535 + ... + 271585536.

It is an arithmetic number, because the mean of its divisors is an integer number (45626286048).

Almost surely, 2^272128205571 is an apocalyptic number.

272128205571 is a deficient number, since it is larger than the sum of its proper divisors (92882082813).

272128205571 is a wasteful number, since it uses less digits than its factorization.

272128205571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543170241.

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 272128205571 in words is "two hundred seventy-two billion, one hundred twenty-eight million, two hundred five thousand, five hundred seventy-one".