8001578732 has 96 divisors (see below), whose sum is σ = 17151160320. Its totient is φ = 3193827840.

The previous prime is 8001578723. The next prime is 8001578743. The reversal of 8001578732 is 2378751008.

It is a self number, because there is not a number n which added to its sum of digits gives 8001578732.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2708168 + ... + 2711120.

It is an arithmetic number, because the mean of its divisors is an integer number (178657920).

Almost surely, 2^8001578732 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 8001578732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8575580160).

8001578732 is an abundant number, since it is smaller than the sum of its proper divisors (9149581588).

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

8001578732 is a wasteful number, since it uses less digits than its factorization.

8001578732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111 (or 3109 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 8001578732 is about 89451.5440448067. The cubic root of 8001578732 is about 2000.1315523468.

The spelling of 8001578732 in words is "eight billion, one million, five hundred seventy-eight thousand, seven hundred thirty-two".