2685562785 has 24 divisors (see below), whose sum is σ = 4665197160. Its totient is φ = 1429155072.

The previous prime is 2685562753. The next prime is 2685562787. The reversal of 2685562785 is 5872655862.

2685562785 is a `hidden beast` number, since 2 + 6 + 8 + 5 + 5 + 627 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 543076416 + 2142486369 = 23304^2 + 46287^2 .

It is not a de Polignac number, because 2685562785 - 2⁵ = 2685562753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2685562787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44730 + ... + 85859.

It is an arithmetic number, because the mean of its divisors is an integer number (194383215).

Almost surely, 2^2685562785 is an apocalyptic number.

It is an amenable number.

2685562785 is a deficient number, since it is larger than the sum of its proper divisors (1979634375).

2685562785 is a wasteful number, since it uses less digits than its factorization.

2685562785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131057 (or 131054 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The square root of 2685562785 is about 51822.4158545315. The cubic root of 2685562785 is about 1389.9903015040.

The spelling of 2685562785 in words is "two billion, six hundred eighty-five million, five hundred sixty-two thousand, seven hundred eighty-five".