538267111181 has 2 divisors, whose sum is σ = 538267111182. Its totient is φ = 538267111180.

The previous prime is 538267111163. The next prime is 538267111189. The reversal of 538267111181 is 181111762835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508582922500 + 29684188681 = 713150^2 + 172291^2 .

It is a cyclic number.

It is not a de Polignac number, because 538267111181 - 2²⁶ = 538200002317 is a prime.

It is a super-2 number, since 2×538267111181² (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 (538267111189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269133555590 + 269133555591.

It is an arithmetic number, because the mean of its divisors is an integer number (269133555591).

Almost surely, 2^538267111181 is an apocalyptic number.

It is an amenable number.

538267111181 is a deficient number, since it is larger than the sum of its proper divisors (1).

538267111181 is an equidigital number, since it uses as much as digits as its factorization.

538267111181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 44.

The spelling of 538267111181 in words is "five hundred thirty-eight billion, two hundred sixty-seven million, one hundred eleven thousand, one hundred eighty-one".