8520309546480 has 640 divisors, whose sum is σ = 30579631349760. Its totient is φ = 2178950492160.

The previous prime is 8520309546479. The next prime is 8520309546491. The reversal of 8520309546480 is 846459030258.

8520309546480 is a `hidden beast` number, since 8 + 5 + 2 + 0 + 30 + 95 + 46 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1715380957 + ... + 1715385923.

It is an arithmetic number, because the mean of its divisors is an integer number (47780673984).

Almost surely, 2^{8520309546480} is an apocalyptic number.

8520309546480 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 8520309546480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15289815674880).

8520309546480 is an abundant number, since it is smaller than the sum of its proper divisors (22059321803280).

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

8520309546480 is a wasteful number, since it uses less digits than its factorization.

8520309546480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374 (or 5362 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 8520309546480 in words is "eight trillion, five hundred twenty billion, three hundred nine million, five hundred forty-six thousand, four hundred eighty".