3938316768 has 96 divisors (see below), whose sum is σ = 11563211520. Its totient is φ = 1304035200.

The previous prime is 3938316757. The next prime is 3938316791. The reversal of 3938316768 is 8676138393.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115371 + ... + 145557.

It is an arithmetic number, because the mean of its divisors is an integer number (120450120).

Almost surely, 2^3938316768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3938316768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5781605760).

3938316768 is an abundant number, since it is smaller than the sum of its proper divisors (7624894752).

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

3938316768 is a wasteful number, since it uses less digits than its factorization.

3938316768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30357 (or 30343 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 3938316768 is about 62756.0098157937. The cubic root of 3938316768 is about 1579.1990770590.

The spelling of 3938316768 in words is "three billion, nine hundred thirty-eight million, three hundred sixteen thousand, seven hundred sixty-eight".