2919091919 has 2 divisors, whose sum is σ = 2919091920. Its totient is φ = 2919091918.

The previous prime is 2919091909. The next prime is 2919091921. The reversal of 2919091919 is 9191909192.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2919091919 - 2⁸ = 2919091663 is a prime.

It is a super-2 number, since 2×2919091919² = 17042195263142205122, which contains 22 as substring.

Together with 2919091921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2919091909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1459545959 + 1459545960.

It is an arithmetic number, because the mean of its divisors is an integer number (1459545960).

Almost surely, 2^2919091919 is an apocalyptic number.

2919091919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2919091919 is an equidigital number, since it uses as much as digits as its factorization.

2919091919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 50.

The square root of 2919091919 is about 54028.6212946435. The cubic root of 2919091919 is about 1429.1657185569.

The spelling of 2919091919 in words is "two billion, nine hundred nineteen million, ninety-one thousand, nine hundred nineteen".