871670565768 has 16 divisors (see below), whose sum is σ = 2179176414480. Its totient is φ = 290556855248.

The previous prime is 871670565763. The next prime is 871670565841. The reversal of 871670565768 is 867565076178.

It is a super-4 number, since 4×871670565768⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 871670565699 and 871670565708.

It is not an unprimeable number, because it can be changed into a prime (871670565761) 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, 18159803430 + ... + 18159803477.

It is an arithmetic number, because the mean of its divisors is an integer number (136198525905).

Almost surely, 2^871670565768 is an apocalyptic number.

It is an amenable number.

871670565768 is an abundant number, since it is smaller than the sum of its proper divisors (1307505848712).

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

871670565768 is a wasteful number, since it uses less digits than its factorization.

871670565768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36319606916 (or 36319606912 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 66.

The spelling of 871670565768 in words is "eight hundred seventy-one billion, six hundred seventy million, five hundred sixty-five thousand, seven hundred sixty-eight".