18358082011 has 2 divisors, whose sum is σ = 18358082012. Its totient is φ = 18358082010.

The previous prime is 18358082003. The next prime is 18358082021. The reversal of 18358082011 is 11028085381.

It is a weak prime.

It is an emirp because it is prime and its reverse (11028085381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18358082011 - 2³ = 18358082003 is a prime.

It is not a weakly prime, because it can be changed into another prime (18358082021) 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, 9179041005 + 9179041006.

It is an arithmetic number, because the mean of its divisors is an integer number (9179041006).

Almost surely, 2^18358082011 is an apocalyptic number.

18358082011 is a deficient number, since it is larger than the sum of its proper divisors (1).

18358082011 is an equidigital number, since it uses as much as digits as its factorization.

18358082011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 37.

The spelling of 18358082011 in words is "eighteen billion, three hundred fifty-eight million, eighty-two thousand, eleven".