8518537868871 has 32 divisors (see below), whose sum is σ = 11514685870080. Its totient is φ = 5601048045824.

The previous prime is 8518537868861. The next prime is 8518537868873. The reversal of 8518537868871 is 1788687358158.

It is a cyclic number.

It is not a de Polignac number, because 8518537868871 - 2²⁹ = 8518000997959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8518537868793 and 8518537868802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8518537868873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171177925 + ... + 171227681.

It is an arithmetic number, because the mean of its divisors is an integer number (359833933440).

Almost surely, 2^{8518537868871} is an apocalyptic number.

8518537868871 is a deficient number, since it is larger than the sum of its proper divisors (2996148001209).

8518537868871 is a wasteful number, since it uses less digits than its factorization.

8518537868871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51455.

The product of its digits is 722534400, while the sum is 75.

The spelling of 8518537868871 in words is "eight trillion, five hundred eighteen billion, five hundred thirty-seven million, eight hundred sixty-eight thousand, eight hundred seventy-one".