3871003871028 has 96 divisors (see below), whose sum is σ = 10616137901824. Its totient is φ = 1074640462848.

The previous prime is 3871003871023. The next prime is 3871003871039. The reversal of 3871003871028 is 8201783001783.

3871003871028 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 (3871003871023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1428576 + ... + 3127752.

Almost surely, 2^{3871003871028} 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 3871003871028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5308068950912).

3871003871028 is an abundant number, since it is smaller than the sum of its proper divisors (6745134030796).

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

3871003871028 is a wasteful number, since it uses less digits than its factorization.

3871003871028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699961 (or 1699959 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 3871003871028 in words is "three trillion, eight hundred seventy-one billion, three million, eight hundred seventy-one thousand, twenty-eight".