2189110131919 has 2 divisors, whose sum is σ = 2189110131920. Its totient is φ = 2189110131918.

The previous prime is 2189110131869. The next prime is 2189110131991. The reversal of 2189110131919 is 9191310119812.

It is a happy number.

Together with next prime (2189110131991) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2189110131919 is a prime.

It is a super-2 number, since 2×2189110131919² (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 (2189110531919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094555065959 + 1094555065960.

It is an arithmetic number, because the mean of its divisors is an integer number (1094555065960).

Almost surely, 2^{2189110131919} is an apocalyptic number.

2189110131919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189110131919 is an equidigital number, since it uses as much as digits as its factorization.

2189110131919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 46.

The spelling of 2189110131919 in words is "two trillion, one hundred eighty-nine billion, one hundred ten million, one hundred thirty-one thousand, nine hundred nineteen".