871034366285886 has 256 divisors, whose sum is σ = 1992656871797760. Its totient is φ = 251478950400000.

The previous prime is 871034366285861. The next prime is 871034366285933. The reversal of 871034366285886 is 688582663430178.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 103830531780 + ... + 103830540168.

It is an arithmetic number, because the mean of its divisors is an integer number (7783815905460).

Almost surely, 2^{871034366285886} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871034366285886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996328435898880).

871034366285886 is an abundant number, since it is smaller than the sum of its proper divisors (1121622505511874).

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

871034366285886 is a wasteful number, since it uses less digits than its factorization.

871034366285886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11531.

The product of its (nonzero) digits is 2229534720, while the sum is 75.

The spelling of 871034366285886 in words is "eight hundred seventy-one trillion, thirty-four billion, three hundred sixty-six million, two hundred eighty-five thousand, eight hundred eighty-six".