5785821000 has 96 divisors (see below), whose sum is σ = 19556105400. Its totient is φ = 1542883200.

The previous prime is 5785820981. The next prime is 5785821007. The reversal of 5785821000 is 1285875.

5785821000 is a `hidden beast` number, since 5 + 78 + 582 + 1 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2940025284 + 2845795716 = 54222^2 + 53346^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5785821007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312435 + ... + 330434.

Almost surely, 2^5785821000 is an apocalyptic number.

5785821000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5785821000 is an abundant number, since it is smaller than the sum of its proper divisors (13770284400).

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

5785821000 is a wasteful number, since it uses less digits than its factorization.

5785821000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642896 (or 642879 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 5785821000 is about 76064.5844003634. The cubic root of 5785821000 is about 1795.2364790098.

The spelling of 5785821000 in words is "five billion, seven hundred eighty-five million, eight hundred twenty-one thousand".