18501853350011 has 2 divisors, whose sum is σ = 18501853350012. Its totient is φ = 18501853350010.

The previous prime is 18501853349981. The next prime is 18501853350049. The reversal of 18501853350011 is 11005335810581.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18501853350011 - 2¹⁸ = 18501853087867 is a prime.

It is not a weakly prime, because it can be changed into another prime (18501853950011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9250926675005 + 9250926675006.

It is an arithmetic number, because the mean of its divisors is an integer number (9250926675006).

Almost surely, 2^{18501853350011} is an apocalyptic number.

18501853350011 is a deficient number, since it is larger than the sum of its proper divisors (1).

18501853350011 is an equidigital number, since it uses as much as digits as its factorization.

18501853350011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 41.

The spelling of 18501853350011 in words is "eighteen trillion, five hundred one billion, eight hundred fifty-three million, three hundred fifty thousand, eleven".