8481687871 has 4 divisors (see below), whose sum is σ = 8482941432. Its totient is φ = 8480434312.

The previous prime is 8481687847. The next prime is 8481687881. The reversal of 8481687871 is 1787861848.

8481687871 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8481687871 - 2¹⁵ = 8481655103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8481687881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616576 + ... + 630181.

It is an arithmetic number, because the mean of its divisors is an integer number (2120735358).

Almost surely, 2^8481687871 is an apocalyptic number.

8481687871 is a deficient number, since it is larger than the sum of its proper divisors (1253561).

8481687871 is a wasteful number, since it uses less digits than its factorization.

8481687871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253560.

The product of its digits is 4816896, while the sum is 58.

The square root of 8481687871 is about 92096.0795636818. The cubic root of 8481687871 is about 2039.3609326389.

The spelling of 8481687871 in words is "eight billion, four hundred eighty-one million, six hundred eighty-seven thousand, eight hundred seventy-one".