2685886804 has 12 divisors (see below), whose sum is σ = 4715321044. Its totient is φ = 1338652224.

The previous prime is 2685886799. The next prime is 2685886807. The reversal of 2685886804 is 4086885862.

It can be written as a sum of positive squares in 2 ways, for example, as 172869904 + 2513016900 = 13148^2 + 50130^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685886807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071387 + ... + 1073890.

Almost surely, 2^2685886804 is an apocalyptic number.

It is an amenable number.

2685886804 is a deficient number, since it is larger than the sum of its proper divisors (2029434240).

2685886804 is a wasteful number, since it uses less digits than its factorization.

2685886804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145594 (or 2145592 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 55.

The square root of 2685886804 is about 51825.5420039193. The cubic root of 2685886804 is about 1390.0462010419.

The spelling of 2685886804 in words is "two billion, six hundred eighty-five million, eight hundred eighty-six thousand, eight hundred four".