8545027820 has 192 divisors, whose sum is σ = 21555072000. Its totient is φ = 2785336320.

The previous prime is 8545027769. The next prime is 8545027837. The reversal of 8545027820 is 287205458.

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, 57349106 + ... + 57349254.

It is an arithmetic number, because the mean of its divisors is an integer number (112266000).

Almost surely, 2^8545027820 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 8545027820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10777536000).

8545027820 is an abundant number, since it is smaller than the sum of its proper divisors (13010044180).

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

8545027820 is a wasteful number, since it uses less digits than its factorization.

8545027820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 8545027820 is about 92439.3196643074. The cubic root of 8545027820 is about 2044.4248931281.

The spelling of 8545027820 in words is "eight billion, five hundred forty-five million, twenty-seven thousand, eight hundred twenty".