189467873269 has 2 divisors, whose sum is σ = 189467873270. Its totient is φ = 189467873268.

The previous prime is 189467873267. The next prime is 189467873293. The reversal of 189467873269 is 962378764981.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143773680625 + 45694192644 = 379175^2 + 213762^2 .

It is a cyclic number.

It is not a de Polignac number, because 189467873269 - 2¹ = 189467873267 is a prime.

It is a super-2 number, since 2×189467873269² (a number of 23 digits) contains 22 as substring.

Together with 189467873267, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 189467873198 and 189467873207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189467873267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94733936634 + 94733936635.

It is an arithmetic number, because the mean of its divisors is an integer number (94733936635).

Almost surely, 2^189467873269 is an apocalyptic number.

It is an amenable number.

189467873269 is a deficient number, since it is larger than the sum of its proper divisors (1).

189467873269 is an equidigital number, since it uses as much as digits as its factorization.

189467873269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 70.

The spelling of 189467873269 in words is "one hundred eighty-nine billion, four hundred sixty-seven million, eight hundred seventy-three thousand, two hundred sixty-nine".