871704120745768 has 16 divisors (see below), whose sum is σ = 1646375483527380. Its totient is φ = 432670658471808.

The previous prime is 871704120745741. The next prime is 871704120745937. The reversal of 871704120745768 is 867547021407178.

It can be written as a sum of positive squares in 2 ways, for example, as 811749731053284 + 59954389692484 = 28491222^2 + 7743022^2 .

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 3 ways as a sum of consecutive naturals, for example, 397675236471 + ... + 397675238662.

Almost surely, 2^{871704120745768} is an apocalyptic number.

It is an amenable number.

871704120745768 is a deficient number, since it is larger than the sum of its proper divisors (774671362781612).

871704120745768 is a wasteful number, since it uses less digits than its factorization.

871704120745768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795350475276 (or 795350475272 counting only the distinct ones).

The product of its (nonzero) digits is 147517440, while the sum is 67.

The spelling of 871704120745768 in words is "eight hundred seventy-one trillion, seven hundred four billion, one hundred twenty million, seven hundred forty-five thousand, seven hundred sixty-eight".