18785852025859 has 2 divisors, whose sum is σ = 18785852025860. Its totient is φ = 18785852025858.

The previous prime is 18785852025847. The next prime is 18785852025883. The reversal of 18785852025859 is 95852025858781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18785852025859 - 2¹¹ = 18785852023811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18785852025791 and 18785852025800.

It is not a weakly prime, because it can be changed into another prime (18785852025359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9392926012929 + 9392926012930.

It is an arithmetic number, because the mean of its divisors is an integer number (9392926012930).

Almost surely, 2^{18785852025859} is an apocalyptic number.

18785852025859 is a deficient number, since it is larger than the sum of its proper divisors (1).

18785852025859 is an equidigital number, since it uses as much as digits as its factorization.

18785852025859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120000, while the sum is 73.

The spelling of 18785852025859 in words is "eighteen trillion, seven hundred eighty-five billion, eight hundred fifty-two million, twenty-five thousand, eight hundred fifty-nine".