2028691211 has 2 divisors, whose sum is σ = 2028691212. Its totient is φ = 2028691210.

The previous prime is 2028691183. The next prime is 2028691219. The reversal of 2028691211 is 1121968202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028691211 - 2¹⁴ = 2028674827 is a prime.

It is not a weakly prime, because it can be changed into another prime (2028691219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014345605 + 1014345606.

It is an arithmetic number, because the mean of its divisors is an integer number (1014345606).

Almost surely, 2^2028691211 is an apocalyptic number.

2028691211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028691211 is an equidigital number, since it uses as much as digits as its factorization.

2028691211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 2028691211 is about 45040.9947825312. The cubic root of 2028691211 is about 1265.9172444194.

The spelling of 2028691211 in words is "two billion, twenty-eight million, six hundred ninety-one thousand, two hundred eleven".