8689779868 has 48 divisors (see below), whose sum is σ = 19783862784. Its totient is φ = 3238424640.

The previous prime is 8689779863. The next prime is 8689779877.

8689779868 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×8689779868³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8689779794 and 8689779803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689779863) 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, 606255 + ... + 620422.

It is an arithmetic number, because the mean of its divisors is an integer number (412163808).

Almost surely, 2^8689779868 is an apocalyptic number.

It is an amenable number.

8689779868 is an abundant number, since it is smaller than the sum of its proper divisors (11094082916).

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

8689779868 is a wasteful number, since it uses less digits than its factorization.

8689779868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226722 (or 1226720 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 76.

The square root of 8689779868 is about 93218.9887737472. The cubic root of 8689779868 is about 2055.9044424467.

The spelling of 8689779868 in words is "eight billion, six hundred eighty-nine million, seven hundred seventy-nine thousand, eight hundred sixty-eight".