4138871109256 has 32 divisors (see below), whose sum is σ = 8498985667200. Its totient is φ = 1877871113280.

The previous prime is 4138871109251. The next prime is 4138871109271. The reversal of 4138871109256 is 6529011788314.

It is a junction number, because it is equal to n+sod(n) for n = 4138871109197 and 4138871109206.

It is not an unprimeable number, because it can be changed into a prime (4138871109251) 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, 337255200 + ... + 337267471.

It is an arithmetic number, because the mean of its divisors is an integer number (265593302100).

It is a 1-persistent number, because it is pandigital, but 2⋅4138871109256 = 8277742218512 is not.

Almost surely, 2^{4138871109256} is an apocalyptic number.

It is an amenable number.

4138871109256 is an abundant number, since it is smaller than the sum of its proper divisors (4360114557944).

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

4138871109256 is a wasteful number, since it uses less digits than its factorization.

4138871109256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674522749 (or 674522745 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 4138871109256 in words is "four trillion, one hundred thirty-eight billion, eight hundred seventy-one million, one hundred nine thousand, two hundred fifty-six".