618806011 has 2 divisors, whose sum is σ = 618806012. Its totient is φ = 618806010.

The previous prime is 618806009. The next prime is 618806039. The reversal of 618806011 is 110608816.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 618806011 - 2¹ = 618806009 is a prime.

Together with 618806009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (618806051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309403005 + 309403006.

It is an arithmetic number, because the mean of its divisors is an integer number (309403006).

Almost surely, 2^618806011 is an apocalyptic number.

618806011 is a deficient number, since it is larger than the sum of its proper divisors (1).

618806011 is an equidigital number, since it uses as much as digits as its factorization.

618806011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 618806011 is about 24875.8117656490. The cubic root of 618806011 is about 852.1541720130.

The spelling of 618806011 in words is "six hundred eighteen million, eight hundred six thousand, eleven".