871057335208138 has 8 divisors (see below), whose sum is σ = 1407092618413188. Its totient is φ = 402026462403744.

The previous prime is 871057335208097. The next prime is 871057335208169. The reversal of 871057335208138 is 831802533750178.

It can be written as a sum of positive squares in 2 ways, for example, as 821136935207169 + 49920400000969 = 28655487^2 + 7065437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16751102600131 + ... + 16751102600182.

Almost surely, 2^{871057335208138} is an apocalyptic number.

871057335208138 is a deficient number, since it is larger than the sum of its proper divisors (536035283205050).

871057335208138 is a wasteful number, since it uses less digits than its factorization.

871057335208138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33502205200328.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 871057335208138 in words is "eight hundred seventy-one trillion, fifty-seven billion, three hundred thirty-five million, two hundred eight thousand, one hundred thirty-eight".