2685543685 has 16 divisors (see below), whose sum is σ = 3530989440. Its totient is φ = 1944584640.

The previous prime is 2685543683. The next prime is 2685543691. The reversal of 2685543685 is 5863455862.

It is not a de Polignac number, because 2685543685 - 2¹ = 2685543683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685543683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94017 + ... + 119206.

It is an arithmetic number, because the mean of its divisors is an integer number (220686840).

Almost surely, 2^2685543685 is an apocalyptic number.

It is an amenable number.

2685543685 is a deficient number, since it is larger than the sum of its proper divisors (845445755).

2685543685 is a wasteful number, since it uses less digits than its factorization.

2685543685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213468.

The product of its digits is 6912000, while the sum is 52.

The square root of 2685543685 is about 51822.2315710159. The cubic root of 2685543685 is about 1389.9870062447.

The spelling of 2685543685 in words is "two billion, six hundred eighty-five million, five hundred forty-three thousand, six hundred eighty-five".