8643209468 has 12 divisors (see below), whose sum is σ = 15783252240. Its totient is φ = 4133708832.

The previous prime is 8643209447. The next prime is 8643209473. The reversal of 8643209468 is 8649023468.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46973873 + ... + 46974056.

It is an arithmetic number, because the mean of its divisors is an integer number (1315271020).

Almost surely, 2^8643209468 is an apocalyptic number.

It is an amenable number.

8643209468 is a deficient number, since it is larger than the sum of its proper divisors (7140042772).

8643209468 is a wasteful number, since it uses less digits than its factorization.

8643209468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93947956 (or 93947954 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The square root of 8643209468 is about 92968.8628950575. The cubic root of 8643209468 is about 2052.2251838672.

The spelling of 8643209468 in words is "eight billion, six hundred forty-three million, two hundred nine thousand, four hundred sixty-eight".