27728616167 has 8 divisors (see below), whose sum is σ = 31691308416. Its totient is φ = 23766289272.

The previous prime is 27728616107. The next prime is 27728616187. The reversal of 27728616167 is 76161682772.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27728616167 - 2¹⁴ = 27728599783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27728616107) 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, 97268 + ... + 254790.

It is an arithmetic number, because the mean of its divisors is an integer number (3961413552).

Almost surely, 2^27728616167 is an apocalyptic number.

27728616167 is a deficient number, since it is larger than the sum of its proper divisors (3962692249).

27728616167 is a wasteful number, since it uses less digits than its factorization.

27728616167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182677.

The product of its digits is 2370816, while the sum is 53.

The spelling of 27728616167 in words is "twenty-seven billion, seven hundred twenty-eight million, six hundred sixteen thousand, one hundred sixty-seven".