8946643650 has 48 divisors (see below), whose sum is σ = 25357347264. Its totient is φ = 2044946880.

The previous prime is 8946643649. The next prime is 8946643691. The reversal of 8946643650 is 563466498.

It is a happy number.

It is a super-3 number, since 3×8946643650³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8946643593 and 8946643602.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4259257 + ... + 4261356.

It is an arithmetic number, because the mean of its divisors is an integer number (528278068).

Almost surely, 2^8946643650 is an apocalyptic number.

8946643650 is an abundant number, since it is smaller than the sum of its proper divisors (16410703614).

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

8946643650 is a wasteful number, since it uses less digits than its factorization.

8946643650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520635 (or 8520630 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The square root of 8946643650 is about 94586.6991177935. The cubic root of 8946643650 is about 2075.9650922624.

The spelling of 8946643650 in words is "eight billion, nine hundred forty-six million, six hundred forty-three thousand, six hundred fifty".