8646663470 has 16 divisors (see below), whose sum is σ = 16240690080. Its totient is φ = 3308288544.

The previous prime is 8646663457. The next prime is 8646663479. The reversal of 8646663470 is 743666468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8646663479) 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, 18796865 + ... + 18797324.

It is an arithmetic number, because the mean of its divisors is an integer number (1015043130).

Almost surely, 2^8646663470 is an apocalyptic number.

8646663470 is a deficient number, since it is larger than the sum of its proper divisors (7594026610).

8646663470 is a wasteful number, since it uses less digits than its factorization.

8646663470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37594219.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The square root of 8646663470 is about 92987.4371622318. The cubic root of 8646663470 is about 2052.4985177449.

The spelling of 8646663470 in words is "eight billion, six hundred forty-six million, six hundred sixty-three thousand, four hundred seventy".