271917475189 has 2 divisors, whose sum is σ = 271917475190. Its totient is φ = 271917475188.

The previous prime is 271917475171. The next prime is 271917475213. The reversal of 271917475189 is 981574719172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226828350225 + 45089124964 = 476265^2 + 212342^2 .

It is a cyclic number.

It is not a de Polignac number, because 271917475189 - 2¹⁹ = 271916950901 is a prime.

It is a super-2 number, since 2×271917475189² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271917475139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135958737594 + 135958737595.

It is an arithmetic number, because the mean of its divisors is an integer number (135958737595).

Almost surely, 2^271917475189 is an apocalyptic number.

It is an amenable number.

271917475189 is a deficient number, since it is larger than the sum of its proper divisors (1).

271917475189 is an equidigital number, since it uses as much as digits as its factorization.

271917475189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8890560, while the sum is 61.

The spelling of 271917475189 in words is "two hundred seventy-one billion, nine hundred seventeen million, four hundred seventy-five thousand, one hundred eighty-nine".