871057520812315 has 16 divisors (see below), whose sum is σ = 1048480900190208. Its totient is φ = 694707677800416.

The previous prime is 871057520812307. The next prime is 871057520812321. The reversal of 871057520812315 is 513218025750178.

It is a cyclic number.

It is not a de Polignac number, because 871057520812315 - 2³ = 871057520812307 is a prime.

It is a Duffinian 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, 179561547 + ... + 184348756.

It is an arithmetic number, because the mean of its divisors is an integer number (65530056261888).

Almost surely, 2^{871057520812315} is an apocalyptic number.

871057520812315 is a deficient number, since it is larger than the sum of its proper divisors (177423379377893).

871057520812315 is a wasteful number, since it uses less digits than its factorization.

871057520812315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363911778.

The product of its (nonzero) digits is 4704000, while the sum is 55.

The spelling of 871057520812315 in words is "eight hundred seventy-one trillion, fifty-seven billion, five hundred twenty million, eight hundred twelve thousand, three hundred fifteen".