873109868981 has 16 divisors (see below), whose sum is σ = 1072705781760. Its totient is φ = 693906542640.

The previous prime is 873109868977. The next prime is 873109868987. The reversal of 873109868981 is 189868901378.

It is a cyclic number.

It is not a de Polignac number, because 873109868981 - 2² = 873109868977 is a prime.

It is a super-3 number, since 3×873109868981³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873109868987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69831365 + ... + 69843866.

It is an arithmetic number, because the mean of its divisors is an integer number (67044111360).

Almost surely, 2^873109868981 is an apocalyptic number.

It is an amenable number.

873109868981 is a deficient number, since it is larger than the sum of its proper divisors (199595912779).

873109868981 is a wasteful number, since it uses less digits than its factorization.

873109868981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139675304.

The product of its (nonzero) digits is 41803776, while the sum is 68.

The spelling of 873109868981 in words is "eight hundred seventy-three billion, one hundred nine million, eight hundred sixty-eight thousand, nine hundred eighty-one".