2111766073 has 2 divisors, whose sum is σ = 2111766074. Its totient is φ = 2111766072.

The previous prime is 2111766047. The next prime is 2111766089. The reversal of 2111766073 is 3706671112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1608571449 + 503194624 = 40107^2 + 22432^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111766073 - 2²¹ = 2109668921 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111766043) 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 as a sum of consecutive naturals, namely, 1055883036 + 1055883037.

It is an arithmetic number, because the mean of its divisors is an integer number (1055883037).

Almost surely, 2^2111766073 is an apocalyptic number.

It is an amenable number.

2111766073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111766073 is an equidigital number, since it uses as much as digits as its factorization.

2111766073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 2111766073 is about 45953.9560103371. The cubic root of 2111766073 is about 1282.9663610017.

The spelling of 2111766073 in words is "two billion, one hundred eleven million, seven hundred sixty-six thousand, seventy-three".