1836685018685 has 32 divisors (see below), whose sum is σ = 2439703062144. Its totient is φ = 1316276640000.

The previous prime is 1836685018661. The next prime is 1836685018703. The reversal of 1836685018685 is 5868105866381.

It is not a de Polignac number, because 1836685018685 - 2⁸ = 1836685018429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 388607 + ... + 1955603.

It is an arithmetic number, because the mean of its divisors is an integer number (76240720692).

Almost surely, 2^{1836685018685} is an apocalyptic number.

It is an amenable number.

1836685018685 is a deficient number, since it is larger than the sum of its proper divisors (603018043459).

1836685018685 is a wasteful number, since it uses less digits than its factorization.

1836685018685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567325.

The product of its (nonzero) digits is 66355200, while the sum is 65.

The spelling of 1836685018685 in words is "one trillion, eight hundred thirty-six billion, six hundred eighty-five million, eighteen thousand, six hundred eighty-five".