871086180060680 has 16 divisors (see below), whose sum is σ = 1959943905136620. Its totient is φ = 348434472024256.

The previous prime is 871086180060641. The next prime is 871086180060703. The reversal of 871086180060680 is 86060081680178.

It can be written as a sum of positive squares in 2 ways, for example, as 757581915930436 + 113504264130244 = 27524206^2 + 10653838^2 .

It is a super-2 number, since 2×871086180060680² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10888577250719 + ... + 10888577250798.

Almost surely, 2^{871086180060680} is an apocalyptic number.

It is an amenable number.

871086180060680 is an abundant number, since it is smaller than the sum of its proper divisors (1088857725075940).

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

871086180060680 is a wasteful number, since it uses less digits than its factorization.

871086180060680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21777154501528 (or 21777154501524 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 871086180060680 in words is "eight hundred seventy-one trillion, eighty-six billion, one hundred eighty million, sixty thousand, six hundred eighty".