8689556412 has 72 divisors (see below), whose sum is σ = 22782631872. Its totient is φ = 2790288000.

The previous prime is 8689556411. The next prime is 8689556417. The reversal of 8689556412 is 2146559868.

8689556412 is a `hidden beast` number, since 8 + 6 + 89 + 556 + 4 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689556411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102237 + ... + 166827.

Almost surely, 2^8689556412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8689556412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11391315936).

8689556412 is an abundant number, since it is smaller than the sum of its proper divisors (14093075460).

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

8689556412 is a wasteful number, since it uses less digits than its factorization.

8689556412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64739 (or 64734 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The square root of 8689556412 is about 93217.7902119547. The cubic root of 8689556412 is about 2055.8868199013.

The spelling of 8689556412 in words is "eight billion, six hundred eighty-nine million, five hundred fifty-six thousand, four hundred twelve".