871063435138078 has 32 divisors (see below), whose sum is σ = 1614789796213440. Its totient is φ = 343166662679040.

The previous prime is 871063435138067. The next prime is 871063435138093. The reversal of 871063435138078 is 870831534360178.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9929547073 + ... + 9929634796.

It is an arithmetic number, because the mean of its divisors is an integer number (50462181131670).

Almost surely, 2^{871063435138078} is an apocalyptic number.

871063435138078 is a deficient number, since it is larger than the sum of its proper divisors (743726361075362).

871063435138078 is a wasteful number, since it uses less digits than its factorization.

871063435138078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19859182132.

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 871063435138078 in words is "eight hundred seventy-one trillion, sixty-three billion, four hundred thirty-five million, one hundred thirty-eight thousand, seventy-eight".