27647728022267 has 4 divisors (see below), whose sum is σ = 27647738596296. Its totient is φ = 27647717448240.

The previous prime is 27647728022249. The next prime is 27647728022293. The reversal of 27647728022267 is 76222082774672.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 27647728022267 - 2¹⁸ = 27647727760123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27647728022237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1815392 + ... + 7654482.

It is an arithmetic number, because the mean of its divisors is an integer number (6911934649074).

Almost surely, 2^{27647728022267} is an apocalyptic number.

27647728022267 is a deficient number, since it is larger than the sum of its proper divisors (10574029).

27647728022267 is an equidigital number, since it uses as much as digits as its factorization.

27647728022267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10574028.

The product of its (nonzero) digits is 88510464, while the sum is 62.

The spelling of 27647728022267 in words is "twenty-seven trillion, six hundred forty-seven billion, seven hundred twenty-eight million, twenty-two thousand, two hundred sixty-seven".