3868778682 has 24 divisors (see below), whose sum is σ = 8608905396. Its totient is φ = 1254738816.

The previous prime is 3868778659. The next prime is 3868778699. The reversal of 3868778682 is 2868778683.

3868778682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3702600801 + 166177881 = 60849^2 + 12891^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2903823 + ... + 2905154.

Almost surely, 2^3868778682 is an apocalyptic number.

3868778682 is an abundant number, since it is smaller than the sum of its proper divisors (4740126714).

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

3868778682 is a wasteful number, since it uses less digits than its factorization.

3868778682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5809022 (or 5809019 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The square root of 3868778682 is about 62199.5070880791. The cubic root of 3868778682 is about 1569.8492940929.

Subtracting from 3868778682 its reverse (2868778683), we obtain a palindrome (999999999).

The spelling of 3868778682 in words is "three billion, eight hundred sixty-eight million, seven hundred seventy-eight thousand, six hundred eighty-two".