18809785850627 has 2 divisors, whose sum is σ = 18809785850628. Its totient is φ = 18809785850626.

The previous prime is 18809785850623. The next prime is 18809785850651. The reversal of 18809785850627 is 72605858790881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18809785850627 - 2² = 18809785850623 is a prime.

It is not a weakly prime, because it can be changed into another prime (18809785850623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9404892925313 + 9404892925314.

It is an arithmetic number, because the mean of its divisors is an integer number (9404892925314).

Almost surely, 2^{18809785850627} is an apocalyptic number.

18809785850627 is a deficient number, since it is larger than the sum of its proper divisors (1).

18809785850627 is an equidigital number, since it uses as much as digits as its factorization.

18809785850627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 541900800, while the sum is 74.

The spelling of 18809785850627 in words is "eighteen trillion, eight hundred nine billion, seven hundred eighty-five million, eight hundred fifty thousand, six hundred twenty-seven".