8684389512 has 32 divisors (see below), whose sum is σ = 24123304800. Its totient is φ = 2894796432.

The previous prime is 8684389433. The next prime is 8684389513. The reversal of 8684389512 is 2159834868.

8684389512 is a `hidden beast` number, since 8 + 6 + 8 + 43 + 89 + 512 = 666.

It is a super-2 number, since 2×8684389512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (8684389513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20102538 + ... + 20102969.

It is an arithmetic number, because the mean of its divisors is an integer number (753853275).

Almost surely, 2^8684389512 is an apocalyptic number.

It is an amenable number.

8684389512 is an abundant number, since it is smaller than the sum of its proper divisors (15438915288).

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

8684389512 is a wasteful number, since it uses less digits than its factorization.

8684389512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40205522 (or 40205512 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 8684389512 is about 93190.0719604830. The cubic root of 8684389512 is about 2055.4792552636.

The spelling of 8684389512 in words is "eight billion, six hundred eighty-four million, three hundred eighty-nine thousand, five hundred twelve".