2685189455889 has 8 divisors (see below), whose sum is σ = 3677016192000. Its totient is φ = 1741744511856.

The previous prime is 2685189455867. The next prime is 2685189455891. The reversal of 2685189455889 is 9885549815862.

2685189455889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2685189455889 - 2⁷ = 2685189455761 is a prime.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2685189455899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12095447889 + ... + 12095448110.

It is an arithmetic number, because the mean of its divisors is an integer number (459627024000).

Almost surely, 2^{2685189455889} is an apocalyptic number.

It is an amenable number.

2685189455889 is a deficient number, since it is larger than the sum of its proper divisors (991826736111).

2685189455889 is a wasteful number, since it uses less digits than its factorization.

2685189455889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24190896039.

The product of its digits is 1990656000, while the sum is 78.

The spelling of 2685189455889 in words is "two trillion, six hundred eighty-five billion, one hundred eighty-nine million, four hundred fifty-five thousand, eight hundred eighty-nine".