2104767991 has 2 divisors, whose sum is σ = 2104767992. Its totient is φ = 2104767990.

The previous prime is 2104767979. The next prime is 2104768009. The reversal of 2104767991 is 1997674012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2104767991 - 2¹⁵ = 2104735223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2104767941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052383995 + 1052383996.

It is an arithmetic number, because the mean of its divisors is an integer number (1052383996).

Almost surely, 2^2104767991 is an apocalyptic number.

2104767991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104767991 is an equidigital number, since it uses as much as digits as its factorization.

2104767991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 2104767991 is about 45877.7505006512. The cubic root of 2104767991 is about 1281.5476054233.

The spelling of 2104767991 in words is "two billion, one hundred four million, seven hundred sixty-seven thousand, nine hundred ninety-one".