3938636366 has 48 divisors (see below), whose sum is σ = 7131307392. Its totient is φ = 1624996800.

The previous prime is 3938636309. The next prime is 3938636393. The reversal of 3938636366 is 6636368393.

3938636366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 595196 + ... + 601776.

It is an arithmetic number, because the mean of its divisors is an integer number (148568904).

Almost surely, 2^3938636366 is an apocalyptic number.

3938636366 is a deficient number, since it is larger than the sum of its proper divisors (3192671026).

3938636366 is a wasteful number, since it uses less digits than its factorization.

3938636366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825 (or 6818 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 53.

The square root of 3938636366 is about 62758.5561178713. The cubic root of 3938636366 is about 1579.2417937190.

The spelling of 3938636366 in words is "three billion, nine hundred thirty-eight million, six hundred thirty-six thousand, three hundred sixty-six".