3868925806 has 24 divisors (see below), whose sum is σ = 6139610784. Its totient is φ = 1828249920.

The previous prime is 3868925779. The next prime is 3868925813. The reversal of 3868925806 is 6085298683.

It is a happy number.

It is a congruent number.

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, 304966 + ... + 317398.

It is an arithmetic number, because the mean of its divisors is an integer number (255817116).

Almost surely, 2^3868925806 is an apocalyptic number.

3868925806 is a deficient number, since it is larger than the sum of its proper divisors (2270684978).

3868925806 is a wasteful number, since it uses less digits than its factorization.

3868925806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904 (or 12885 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The square root of 3868925806 is about 62200.6897550180. The cubic root of 3868925806 is about 1569.8691935322.

The spelling of 3868925806 in words is "three billion, eight hundred sixty-eight million, nine hundred twenty-five thousand, eight hundred six".