27680221471 has 6 divisors (see below), whose sum is σ = 32199441360. Its totient is φ = 23725904076.

The previous prime is 27680221463. The next prime is 27680221487. The reversal of 27680221471 is 17412208672.

It is not a de Polignac number, because 27680221471 - 2³ = 27680221463 is a prime.

It is a super-3 number, since 3×27680221471³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27680221271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282451191 + ... + 282451288.

It is an arithmetic number, because the mean of its divisors is an integer number (5366573560).

Almost surely, 2^27680221471 is an apocalyptic number.

27680221471 is a deficient number, since it is larger than the sum of its proper divisors (4519219889).

27680221471 is an equidigital number, since it uses as much as digits as its factorization.

27680221471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564902493 (or 564902486 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 27680221471 in words is "twenty-seven billion, six hundred eighty million, two hundred twenty-one thousand, four hundred seventy-one".