2160911749 has 2 divisors, whose sum is σ = 2160911750. Its totient is φ = 2160911748.

The previous prime is 2160911681. The next prime is 2160911783. The reversal of 2160911749 is 9471190612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1247361124 + 913550625 = 35318^2 + 30225^2 .

It is a cyclic number.

It is not a de Polignac number, because 2160911749 - 2⁹ = 2160911237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2160911149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080455874 + 1080455875.

It is an arithmetic number, because the mean of its divisors is an integer number (1080455875).

Almost surely, 2^2160911749 is an apocalyptic number.

It is an amenable number.

2160911749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160911749 is an equidigital number, since it uses as much as digits as its factorization.

2160911749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 2160911749 is about 46485.6079770933. The cubic root of 2160911749 is about 1292.8426684041.

The spelling of 2160911749 in words is "two billion, one hundred sixty million, nine hundred eleven thousand, seven hundred forty-nine".