8646069329 has 4 divisors (see below), whose sum is σ = 8646288384.
Its totient is φ = 8645850276.
The previous prime is 8646069319. The next prime is 8646069343. The reversal of 8646069329 is 9239606468.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-8646069329 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8646069319) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32057 + ... + 135350.
It is an arithmetic number, because the mean of its divisors is an integer number (2161572096).
Almost surely, 28646069329 is an apocalyptic number.
It is an amenable number.
8646069329 is a deficient number, since it is larger than the sum of its proper divisors (219055).
8646069329 is a wasteful number, since it uses less digits than its factorization.
8646069329 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 219054.
The product of its (nonzero) digits is 3359232, while the sum is 53.
The square root of 8646069329 is about 92984.2423693391.
The cubic root of 8646069329 is about 2052.4515053353.
The spelling of 8646069329 in words is "eight billion, six hundred forty-six million, sixty-nine thousand, three hundred twenty-nine".