2011806733 has 2 divisors, whose sum is σ = 2011806734. Its totient is φ = 2011806732.

The previous prime is 2011806689. The next prime is 2011806743. The reversal of 2011806733 is 3376081102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258688484 + 753118249 = 35478^2 + 27443^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011806733 - 2¹⁷ = 2011675661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011806695 and 2011806704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011806743) 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, 1005903366 + 1005903367.

It is an arithmetic number, because the mean of its divisors is an integer number (1005903367).

Almost surely, 2^2011806733 is an apocalyptic number.

It is an amenable number.

2011806733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011806733 is an equidigital number, since it uses as much as digits as its factorization.

2011806733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2011806733 is about 44853.1685948719. The cubic root of 2011806733 is about 1262.3954457480.

Adding to 2011806733 its reverse (3376081102), we get a palindrome (5387887835).

The spelling of 2011806733 in words is "two billion, eleven million, eight hundred six thousand, seven hundred thirty-three".