2185603229689 has 24 divisors (see below), whose sum is σ = 2534077728000. Its totient is φ = 1878407039520.

The previous prime is 2185603229687. The next prime is 2185603229701. The reversal of 2185603229689 is 9869223065812.

It is a happy number.

It is not a de Polignac number, because 2185603229689 - 2¹ = 2185603229687 is a prime.

It is a super-2 number, since 2×2185603229689² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2185603229687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108867 + ... + 2093575.

It is an arithmetic number, because the mean of its divisors is an integer number (105586572000).

Almost surely, 2^{2185603229689} is an apocalyptic number.

It is an amenable number.

2185603229689 is a deficient number, since it is larger than the sum of its proper divisors (348474498311).

2185603229689 is a wasteful number, since it uses less digits than its factorization.

2185603229689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985229 (or 1985218 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 2185603229689 in words is "two trillion, one hundred eighty-five billion, six hundred three million, two hundred twenty-nine thousand, six hundred eighty-nine".