2189202937189 has 2 divisors, whose sum is σ = 2189202937190. Its totient is φ = 2189202937188.

The previous prime is 2189202937183. The next prime is 2189202937267. The reversal of 2189202937189 is 9817392029812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2171688532225 + 17514404964 = 1473665^2 + 132342^2 .

It is a cyclic number.

It is not a de Polignac number, because 2189202937189 - 2²⁹ = 2188666066277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2189202937183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094601468594 + 1094601468595.

It is an arithmetic number, because the mean of its divisors is an integer number (1094601468595).

Almost surely, 2^{2189202937189} is an apocalyptic number.

It is an amenable number.

2189202937189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189202937189 is an equidigital number, since it uses as much as digits as its factorization.

2189202937189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 2189202937189 in words is "two trillion, one hundred eighty-nine billion, two hundred two million, nine hundred thirty-seven thousand, one hundred eighty-nine".