11677188209 has 2 divisors, whose sum is σ = 11677188210. Its totient is φ = 11677188208.

The previous prime is 11677188077. The next prime is 11677188233. The reversal of 11677188209 is 90288177611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8701158400 + 2976029809 = 93280^2 + 54553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11677188209 is a prime.

It is not a weakly prime, because it can be changed into another prime (11677188239) 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, 5838594104 + 5838594105.

It is an arithmetic number, because the mean of its divisors is an integer number (5838594105).

Almost surely, 2^11677188209 is an apocalyptic number.

It is an amenable number.

11677188209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11677188209 is an equidigital number, since it uses as much as digits as its factorization.

11677188209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 50.

The spelling of 11677188209 in words is "eleven billion, six hundred seventy-seven million, one hundred eighty-eight thousand, two hundred nine".