27128483711887 has 2 divisors, whose sum is σ = 27128483711888. Its totient is φ = 27128483711886.

The previous prime is 27128483711863. The next prime is 27128483712049. The reversal of 27128483711887 is 78811738482172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27128483711887 - 2⁷ = 27128483711759 is a prime.

It is a super-2 number, since 2×27128483711887² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27128483711827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13564241855943 + 13564241855944.

It is an arithmetic number, because the mean of its divisors is an integer number (13564241855944).

Almost surely, 2^{27128483711887} is an apocalyptic number.

27128483711887 is a deficient number, since it is larger than the sum of its proper divisors (1).

27128483711887 is an equidigital number, since it uses as much as digits as its factorization.

27128483711887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67436544, while the sum is 67.

The spelling of 27128483711887 in words is "twenty-seven trillion, one hundred twenty-eight billion, four hundred eighty-three million, seven hundred eleven thousand, eight hundred eighty-seven".