8285620572 has 72 divisors (see below), whose sum is σ = 21886056192. Its totient is φ = 2740748400.

The previous prime is 8285620571. The next prime is 8285620591. The reversal of 8285620572 is 2750265828.

8285620572 is a `hidden beast` number, since 8 + 2 + 8 + 56 + 20 + 572 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8285620571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94797 + ... + 159867.

Almost surely, 2^8285620572 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 8285620572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10943028096).

8285620572 is an abundant number, since it is smaller than the sum of its proper divisors (13600435620).

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

8285620572 is a wasteful number, since it uses less digits than its factorization.

8285620572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65221 (or 65207 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 8285620572 is about 91025.3842178104. The cubic root of 8285620572 is about 2023.5239416203.

The spelling of 8285620572 in words is "eight billion, two hundred eighty-five million, six hundred twenty thousand, five hundred seventy-two".