2189192669 has 2 divisors, whose sum is σ = 2189192670. Its totient is φ = 2189192668.

The previous prime is 2189192657. The next prime is 2189192671. The reversal of 2189192669 is 9662919812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1968075769 + 221116900 = 44363^2 + 14870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2189192669 is a prime.

It is a super-2 number, since 2×2189192669² = 9585129084006687122, which contains 22 as substring.

Together with 2189192671, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2189192669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2189192609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094596334 + 1094596335.

It is an arithmetic number, because the mean of its divisors is an integer number (1094596335).

Almost surely, 2^2189192669 is an apocalyptic number.

It is an amenable number.

2189192669 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189192669 is an equidigital number, since it uses as much as digits as its factorization.

2189192669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 53.

The square root of 2189192669 is about 46788.8092282759. The cubic root of 2189192669 is about 1298.4582648067.

The spelling of 2189192669 in words is "two billion, one hundred eighty-nine million, one hundred ninety-two thousand, six hundred sixty-nine".