8528709473280 has 704 divisors, whose sum is σ = 32482537505280. Its totient is φ = 2116614094848.

The previous prime is 8528709473233. The next prime is 8528709473321. The reversal of 8528709473280 is 823749078258.

8528709473280 is a `hidden beast` number, since 8 + 5 + 2 + 87 + 0 + 9 + 473 + 2 + 80 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117605992 + ... + 117678488.

Almost surely, 2^{8528709473280} is an apocalyptic number.

8528709473280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8528709473280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16241268752640).

8528709473280 is an abundant number, since it is smaller than the sum of its proper divisors (23953828032000).

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

8528709473280 is a wasteful number, since it uses less digits than its factorization.

8528709473280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72591 (or 72567 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 63.

The spelling of 8528709473280 in words is "eight trillion, five hundred twenty-eight billion, seven hundred nine million, four hundred seventy-three thousand, two hundred eighty".