8643201512 has 64 divisors (see below), whose sum is σ = 18275811840. Its totient is φ = 3796531200.

The previous prime is 8643201509. The next prime is 8643201521. The reversal of 8643201512 is 2151023468.

It is a super-2 number, since 2×8643201512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2336048 + ... + 2339744.

It is an arithmetic number, because the mean of its divisors is an integer number (285559560).

Almost surely, 2^8643201512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8643201512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9137905920).

8643201512 is an abundant number, since it is smaller than the sum of its proper divisors (9632610328).

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

8643201512 is a wasteful number, since it uses less digits than its factorization.

8643201512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602 (or 4598 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 8643201512 is about 92968.8201065282. The cubic root of 8643201512 is about 2052.2245541818.

The spelling of 8643201512 in words is "eight billion, six hundred forty-three million, two hundred one thousand, five hundred twelve".