8651443072 has 64 divisors (see below), whose sum is σ = 18521825040. Its totient is φ = 4010434560.

The previous prime is 8651443057. The next prime is 8651443091. The reversal of 8651443072 is 2703441568.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116122 + ... + 175462.

Almost surely, 2^8651443072 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 8651443072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9260912520).

8651443072 is an abundant number, since it is smaller than the sum of its proper divisors (9870381968).

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

8651443072 is a wasteful number, since it uses less digits than its factorization.

8651443072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59439 (or 59427 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 8651443072 is about 93013.1338682877. The cubic root of 8651443072 is about 2052.8766334976.

The spelling of 8651443072 in words is "eight billion, six hundred fifty-one million, four hundred forty-three thousand, seventy-two".