2104619999 has 4 divisors (see below), whose sum is σ = 2105961240. Its totient is φ = 2103278760.

The previous prime is 2104619969. The next prime is 2104620059. The reversal of 2104619999 is 9999164012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2104619999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104619969) 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 in 3 ways as a sum of consecutive naturals, for example, 668264 + ... + 671405.

It is an arithmetic number, because the mean of its divisors is an integer number (526490310).

Almost surely, 2^2104619999 is an apocalyptic number.

2104619999 is a deficient number, since it is larger than the sum of its proper divisors (1341241).

2104619999 is a wasteful number, since it uses less digits than its factorization.

2104619999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341240.

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 2104619999 is about 45876.1375771762. The cubic root of 2104619999 is about 1281.5175683456.

The spelling of 2104619999 in words is "two billion, one hundred four million, six hundred nineteen thousand, nine hundred ninety-nine".