27792856171 has 2 divisors, whose sum is σ = 27792856172. Its totient is φ = 27792856170.

The previous prime is 27792856151. The next prime is 27792856213. The reversal of 27792856171 is 17165829772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27792856171 - 2²¹ = 27790759019 is a prime.

It is not a weakly prime, because it can be changed into another prime (27792856111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13896428085 + 13896428086.

It is an arithmetic number, because the mean of its divisors is an integer number (13896428086).

Almost surely, 2^27792856171 is an apocalyptic number.

27792856171 is a deficient number, since it is larger than the sum of its proper divisors (1).

27792856171 is an equidigital number, since it uses as much as digits as its factorization.

27792856171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 55.

The spelling of 27792856171 in words is "twenty-seven billion, seven hundred ninety-two million, eight hundred fifty-six thousand, one hundred seventy-one".