8719689816 has 24 divisors (see below), whose sum is σ = 23615826780. Its totient is φ = 2906563248.

The previous prime is 8719689809. The next prime is 8719689821. The reversal of 8719689816 is 6189869178.

8719689816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×8719689816² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60553330 + ... + 60553473.

Almost surely, 2^8719689816 is an apocalyptic number.

It is an amenable number.

8719689816 is an abundant number, since it is smaller than the sum of its proper divisors (14896136964).

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

8719689816 is a wasteful number, since it uses less digits than its factorization.

8719689816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121106815 (or 121106808 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 63.

The square root of 8719689816 is about 93379.2793718178. The cubic root of 8719689816 is about 2058.2605273852.

The spelling of 8719689816 in words is "eight billion, seven hundred nineteen million, six hundred eighty-nine thousand, eight hundred sixteen".