2115770791 has 2 divisors, whose sum is σ = 2115770792. Its totient is φ = 2115770790.

The previous prime is 2115770773. The next prime is 2115770803. The reversal of 2115770791 is 1970775112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2115770791 - 2¹⁹ = 2115246503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115770711) 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, 1057885395 + 1057885396.

It is an arithmetic number, because the mean of its divisors is an integer number (1057885396).

Almost surely, 2^2115770791 is an apocalyptic number.

2115770791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115770791 is an equidigital number, since it uses as much as digits as its factorization.

2115770791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30870, while the sum is 40.

The square root of 2115770791 is about 45997.5085303541. The cubic root of 2115770791 is about 1283.7768475641.

The spelling of 2115770791 in words is "two billion, one hundred fifteen million, seven hundred seventy thousand, seven hundred ninety-one".