18836685053 has 2 divisors, whose sum is σ = 18836685054. Its totient is φ = 18836685052.

The previous prime is 18836685041. The next prime is 18836685149. The reversal of 18836685053 is 35058663881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18099128089 + 737556964 = 134533^2 + 27158^2 .

It is a cyclic number.

It is not a de Polignac number, because 18836685053 - 2⁴ = 18836685037 is a prime.

It is a super-2 number, since 2×18836685053² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18836684986 and 18836685004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18836685853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9418342526 + 9418342527.

It is an arithmetic number, because the mean of its divisors is an integer number (9418342527).

Almost surely, 2^18836685053 is an apocalyptic number.

It is an amenable number.

18836685053 is a deficient number, since it is larger than the sum of its proper divisors (1).

18836685053 is an equidigital number, since it uses as much as digits as its factorization.

18836685053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 18836685053 in words is "eighteen billion, eight hundred thirty-six million, six hundred eighty-five thousand, fifty-three".