2685517648 has 40 divisors (see below), whose sum is σ = 5710259520. Its totient is φ = 1213367040.

The previous prime is 2685517633. The next prime is 2685517673. The reversal of 2685517648 is 8467155862.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2685517595 and 2685517604.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16293 + ... + 75076.

It is an arithmetic number, because the mean of its divisors is an integer number (142756488).

Almost surely, 2^2685517648 is an apocalyptic number.

It is an amenable number.

2685517648 is an abundant number, since it is smaller than the sum of its proper divisors (3024741872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2685517648 is a wasteful number, since it uses less digits than its factorization.

2685517648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91555 (or 91549 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 52.

The square root of 2685517648 is about 51821.9803558297. The cubic root of 2685517648 is about 1389.9825141426.

The spelling of 2685517648 in words is "two billion, six hundred eighty-five million, five hundred seventeen thousand, six hundred forty-eight".