80528564942280 has 768 divisors, whose sum is σ = 326399044608000. Its totient is φ = 16764906203136.

The previous prime is 80528564942257. The next prime is 80528564942317. The reversal of 80528564942280 is 8224946582508.

80528564942280 is a `hidden beast` number, since 8 + 0 + 5 + 2 + 8 + 564 + 9 + 42 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4459183891 + ... + 4459201949.

It is an arithmetic number, because the mean of its divisors is an integer number (424998756000).

Almost surely, 2^{80528564942280} 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 80528564942280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163199522304000).

80528564942280 is an abundant number, since it is smaller than the sum of its proper divisors (245870479665720).

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

80528564942280 is a wasteful number, since it uses less digits than its factorization.

80528564942280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19898 (or 19891 counting only the distinct ones).

The product of its (nonzero) digits is 88473600, while the sum is 63.

The spelling of 80528564942280 in words is "eighty trillion, five hundred twenty-eight billion, five hundred sixty-four million, nine hundred forty-two thousand, two hundred eighty".