3911971934928 has 40 divisors (see below), whose sum is σ = 10320947238528. Its totient is φ = 1276246162432.

The previous prime is 3911971934909. The next prime is 3911971934929. The reversal of 3911971934928 is 8294391791193.

It is a happy number.

3911971934928 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 not an unprimeable number, because it can be changed into a prime (3911971934929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 867012801 + ... + 867017312.

Almost surely, 2^{3911971934928} is an apocalyptic number.

It is an amenable number.

3911971934928 is an abundant number, since it is smaller than the sum of its proper divisors (6408975303600).

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

3911971934928 is a wasteful number, since it uses less digits than its factorization.

3911971934928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734030171 (or 1734030165 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 66.

The spelling of 3911971934928 in words is "three trillion, nine hundred eleven billion, nine hundred seventy-one million, nine hundred thirty-four thousand, nine hundred twenty-eight".