2104238791 has 2 divisors, whose sum is σ = 2104238792. Its totient is φ = 2104238790.

The previous prime is 2104238779. The next prime is 2104238813. The reversal of 2104238791 is 1978324012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2104238791 - 2²⁷ = 1970021063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2104238791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104238711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052119395 + 1052119396.

It is an arithmetic number, because the mean of its divisors is an integer number (1052119396).

Almost surely, 2^2104238791 is an apocalyptic number.

2104238791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104238791 is an equidigital number, since it uses as much as digits as its factorization.

2104238791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2104238791 is about 45871.9826364634. The cubic root of 2104238791 is about 1281.4401902841.

The spelling of 2104238791 in words is "two billion, one hundred four million, two hundred thirty-eight thousand, seven hundred ninety-one".