871034386868273 has 4 divisors (see below), whose sum is σ = 871075744583028. Its totient is φ = 870993029153520.

The previous prime is 871034386868231. The next prime is 871034386868281. The reversal of 871034386868273 is 372868683430178.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 684049082366224 + 186985304502049 = 26154332^2 + 13674257^2 .

It is a cyclic number.

It is not a de Polignac number, because 871034386868273 - 2⁸ = 871034386868017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 871034386868273.

It is not an unprimeable number, because it can be changed into a prime (871034386868293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20678825786 + ... + 20678867907.

It is an arithmetic number, because the mean of its divisors is an integer number (217768936145757).

Almost surely, 2^{871034386868273} is an apocalyptic number.

It is an amenable number.

871034386868273 is a deficient number, since it is larger than the sum of its proper divisors (41357714755).

871034386868273 is a wasteful number, since it uses less digits than its factorization.

871034386868273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41357714754.

The product of its (nonzero) digits is 1560674304, while the sum is 74.

The spelling of 871034386868273 in words is "eight hundred seventy-one trillion, thirty-four billion, three hundred eighty-six million, eight hundred sixty-eight thousand, two hundred seventy-three".