871028507435855 has 16 divisors (see below), whose sum is σ = 1061117556200064. Its totient is φ = 686262107232000.

The previous prime is 871028507435831. The next prime is 871028507435857. The reversal of 871028507435855 is 558534705820178.

It is not a de Polignac number, because 871028507435855 - 2¹² = 871028507431759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871028507435857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1762219271 + ... + 1762713480.

It is an arithmetic number, because the mean of its divisors is an integer number (66319847262504).

Almost surely, 2^{871028507435855} is an apocalyptic number.

871028507435855 is a deficient number, since it is larger than the sum of its proper divisors (190089048764209).

871028507435855 is a wasteful number, since it uses less digits than its factorization.

871028507435855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524933506.

The product of its (nonzero) digits is 376320000, while the sum is 68.

The spelling of 871028507435855 in words is "eight hundred seventy-one trillion, twenty-eight billion, five hundred seven million, four hundred thirty-five thousand, eight hundred fifty-five".