18086835271 has 2 divisors, whose sum is σ = 18086835272. Its totient is φ = 18086835270.

The previous prime is 18086835241. The next prime is 18086835373. The reversal of 18086835271 is 17253868081.

It is a weak prime.

It is an emirp because it is prime and its reverse (17253868081) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18086835271 is a prime.

It is a super-2 number, since 2×18086835271² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18086835241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9043417635 + 9043417636.

It is an arithmetic number, because the mean of its divisors is an integer number (9043417636).

Almost surely, 2^18086835271 is an apocalyptic number.

18086835271 is a deficient number, since it is larger than the sum of its proper divisors (1).

18086835271 is an equidigital number, since it uses as much as digits as its factorization.

18086835271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 18086835271 in words is "eighteen billion, eighty-six million, eight hundred thirty-five thousand, two hundred seventy-one".