2164188489919 has 2 divisors, whose sum is σ = 2164188489920. Its totient is φ = 2164188489918.

The previous prime is 2164188489901. The next prime is 2164188489937. The reversal of 2164188489919 is 9199848814612.

It is a balanced prime because it is at equal distance from previous prime (2164188489901) and next prime (2164188489937).

It is a cyclic number.

It is not a de Polignac number, because 2164188489919 - 2¹⁹ = 2164187965631 is a prime.

It is a super-2 number, since 2×2164188489919² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164188489989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082094244959 + 1082094244960.

It is an arithmetic number, because the mean of its divisors is an integer number (1082094244960).

Almost surely, 2^{2164188489919} is an apocalyptic number.

2164188489919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164188489919 is an equidigital number, since it uses as much as digits as its factorization.

2164188489919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71663616, while the sum is 70.

The spelling of 2164188489919 in words is "two trillion, one hundred sixty-four billion, one hundred eighty-eight million, four hundred eighty-nine thousand, nine hundred nineteen".