27872802080221 has 32 divisors (see below), whose sum is σ = 32695004998656. Its totient is φ = 23262974064000.

The previous prime is 27872802080183. The next prime is 27872802080243. The reversal of 27872802080221 is 12208020827872.

It is a cyclic number.

It is not a de Polignac number, because 27872802080221 - 2¹⁹ = 27872801555933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27872802080261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1063712506 + ... + 1063738708.

It is an arithmetic number, because the mean of its divisors is an integer number (1021718906208).

Almost surely, 2^{27872802080221} is an apocalyptic number.

It is an amenable number.

27872802080221 is a deficient number, since it is larger than the sum of its proper divisors (4822202918435).

27872802080221 is a wasteful number, since it uses less digits than its factorization.

27872802080221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33313.

The product of its (nonzero) digits is 802816, while the sum is 49.

The spelling of 27872802080221 in words is "twenty-seven trillion, eight hundred seventy-two billion, eight hundred two million, eighty thousand, two hundred twenty-one".