8646864052 has 72 divisors (see below), whose sum is σ = 16274994120. Its totient is φ = 4018636800.

The previous prime is 8646864047. The next prime is 8646864097. The reversal of 8646864052 is 2504686468.

It can be written as a sum of positive squares in 4 ways, for example, as 5141750436 + 3505113616 = 71706^2 + 59204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8646863987 and 8646864005.

It is a congruent number.

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, 21563052 + ... + 21563452.

It is an arithmetic number, because the mean of its divisors is an integer number (226041585).

Almost surely, 2^8646864052 is an apocalyptic number.

It is an amenable number.

8646864052 is a deficient number, since it is larger than the sum of its proper divisors (7628130068).

8646864052 is a wasteful number, since it uses less digits than its factorization.

8646864052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The square root of 8646864052 is about 92988.5156995207. The cubic root of 8646864052 is about 2052.5143886480.

The spelling of 8646864052 in words is "eight billion, six hundred forty-six million, eight hundred sixty-four thousand, fifty-two".