8046821502864 has 75 divisors (see below), whose sum is σ = 23290131572257. Its totient is φ = 2682239793984.

The previous prime is 8046821502851. The next prime is 8046821502869. The reversal of 8046821502864 is 4682051286408.

The square root of 8046821502864 is 2836692.

It is a perfect power (a square), and thus also a powerful number.

8046821502864 is a `hidden beast` number, since 8 + 0 + 468 + 2 + 150 + 28 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6598630688400 + 1448190814464 = 2568780^2 + 1203408^2 .

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8046821502864.

It is not an unprimeable number, because it can be changed into a prime (8046821502869) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 102081514 + ... + 102160310.

Almost surely, 2^{8046821502864} is an apocalyptic number.

8046821502864 is the 2836692-nd square number.

It is an amenable number.

8046821502864 is an abundant number, since it is smaller than the sum of its proper divisors (15243310069393).

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

8046821502864 is an frugal number, since it uses more digits than its factorization.

8046821502864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157614 (or 78802 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 8046821502864 in words is "eight trillion, forty-six billion, eight hundred twenty-one million, five hundred two thousand, eight hundred sixty-four".