27128425211 has 2 divisors, whose sum is σ = 27128425212. Its totient is φ = 27128425210.

The previous prime is 27128425201. The next prime is 27128425217. The reversal of 27128425211 is 11252482172.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27128425211 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (27128425217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13564212605 + 13564212606.

It is an arithmetic number, because the mean of its divisors is an integer number (13564212606).

Almost surely, 2^27128425211 is an apocalyptic number.

27128425211 is a deficient number, since it is larger than the sum of its proper divisors (1).

27128425211 is an equidigital number, since it uses as much as digits as its factorization.

27128425211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 35.

The spelling of 27128425211 in words is "twenty-seven billion, one hundred twenty-eight million, four hundred twenty-five thousand, two hundred eleven".