27485731171 has 2 divisors, whose sum is σ = 27485731172. Its totient is φ = 27485731170.

The previous prime is 27485731129. The next prime is 27485731187. The reversal of 27485731171 is 17113758472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27485731171 - 2¹⁵ = 27485698403 is a prime.

It is not a weakly prime, because it can be changed into another prime (27485731771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13742865585 + 13742865586.

It is an arithmetic number, because the mean of its divisors is an integer number (13742865586).

Almost surely, 2^27485731171 is an apocalyptic number.

27485731171 is a deficient number, since it is larger than the sum of its proper divisors (1).

27485731171 is an equidigital number, since it uses as much as digits as its factorization.

27485731171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 329280, while the sum is 46.

The spelling of 27485731171 in words is "twenty-seven billion, four hundred eighty-five million, seven hundred thirty-one thousand, one hundred seventy-one".