2105419999 has 2 divisors, whose sum is σ = 2105420000. Its totient is φ = 2105419998.

The previous prime is 2105419997. The next prime is 2105420003. The reversal of 2105419999 is 9999145012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2105419999 - 2¹ = 2105419997 is a prime.

Together with 2105419997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2105419997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052709999 + 1052710000.

It is an arithmetic number, because the mean of its divisors is an integer number (1052710000).

Almost surely, 2^2105419999 is an apocalyptic number.

2105419999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105419999 is an equidigital number, since it uses as much as digits as its factorization.

2105419999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 49.

The square root of 2105419999 is about 45884.8558786012. The cubic root of 2105419999 is about 1281.6799229405.

The spelling of 2105419999 in words is "two billion, one hundred five million, four hundred nineteen thousand, nine hundred ninety-nine".