8501564992 has 56 divisors (see below), whose sum is σ = 17660063232. Its totient is φ = 4055654400.

The previous prime is 8501564987. The next prime is 8501564993. The reversal of 8501564992 is 2994651058.

It is not an unprimeable number, because it can be changed into a prime (8501564993) 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, 110688 + ... + 171040.

It is an arithmetic number, because the mean of its divisors is an integer number (315358272).

Almost surely, 2^8501564992 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 8501564992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8830031616).

8501564992 is an abundant number, since it is smaller than the sum of its proper divisors (9158498240).

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

8501564992 is a wasteful number, since it uses less digits than its factorization.

8501564992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60467 (or 60457 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 8501564992 is about 92203.9315430747. The cubic root of 8501564992 is about 2040.9527934212.

The spelling of 8501564992 in words is "eight billion, five hundred one million, five hundred sixty-four thousand, nine hundred ninety-two".