39938423716 has 9 divisors (see below), whose sum is σ = 69892940971. Its totient is φ = 19969012012.

The previous prime is 39938423711. The next prime is 39938423741. The reversal of 39938423716 is 61732483993.

The square root of 39938423716 is 199846.

It is a perfect power (a square), and thus also a powerful number.

39938423716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39938423711) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 349731 + ... + 449653.

Almost surely, 2^39938423716 is an apocalyptic number.

39938423716 is the 199846-th square number.

It is an amenable number.

39938423716 is a deficient number, since it is larger than the sum of its proper divisors (29954517255).

39938423716 is an frugal number, since it uses more digits than its factorization.

39938423716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199850 (or 99925 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 55.

The spelling of 39938423716 in words is "thirty-nine billion, nine hundred thirty-eight million, four hundred twenty-three thousand, seven hundred sixteen".