27257383189 has 2 divisors, whose sum is σ = 27257383190. Its totient is φ = 27257383188.

The previous prime is 27257383187. The next prime is 27257383213. The reversal of 27257383189 is 98138375272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21252683089 + 6004700100 = 145783^2 + 77490^2 .

It is a cyclic number.

It is not a de Polignac number, because 27257383189 - 2¹ = 27257383187 is a prime.

Together with 27257383187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27257383187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13628691594 + 13628691595.

It is an arithmetic number, because the mean of its divisors is an integer number (13628691595).

Almost surely, 2^27257383189 is an apocalyptic number.

It is an amenable number.

27257383189 is a deficient number, since it is larger than the sum of its proper divisors (1).

27257383189 is an equidigital number, since it uses as much as digits as its factorization.

27257383189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 55.

The spelling of 27257383189 in words is "twenty-seven billion, two hundred fifty-seven million, three hundred eighty-three thousand, one hundred eighty-nine".