2189404963 has 2 divisors, whose sum is σ = 2189404964. Its totient is φ = 2189404962.

The previous prime is 2189404951. The next prime is 2189404969. The reversal of 2189404963 is 3694049812.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2189404963 is a prime.

It is a super-3 number, since 3×2189404963³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2189404969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094702481 + 1094702482.

It is an arithmetic number, because the mean of its divisors is an integer number (1094702482).

Almost surely, 2^2189404963 is an apocalyptic number.

2189404963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189404963 is an equidigital number, since it uses as much as digits as its factorization.

2189404963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 2189404963 is about 46791.0778140448. The cubic root of 2189404963 is about 1298.5002355284.

The spelling of 2189404963 in words is "two billion, one hundred eighty-nine million, four hundred four thousand, nine hundred sixty-three".