4138871109128 has 32 divisors (see below), whose sum is σ = 8888165103360. Its totient is φ = 1769970787200.

The previous prime is 4138871109103. The next prime is 4138871109133. The reversal of 4138871109128 is 8219011788314.

4138871109128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4138871109128.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79788773 + ... + 79840628.

It is an arithmetic number, because the mean of its divisors is an integer number (277755159480).

Almost surely, 2^{4138871109128} is an apocalyptic number.

It is an amenable number.

4138871109128 is an abundant number, since it is smaller than the sum of its proper divisors (4749293994232).

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

4138871109128 is a wasteful number, since it uses less digits than its factorization.

4138871109128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159629877 (or 159629873 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 53.

The spelling of 4138871109128 in words is "four trillion, one hundred thirty-eight billion, eight hundred seventy-one million, one hundred nine thousand, one hundred twenty-eight".