6472821852 has 72 divisors (see below), whose sum is σ = 18759616512. Its totient is φ = 1843408800.

The previous prime is 6472821833. The next prime is 6472821853. The reversal of 6472821852 is 2581282746.

It is a junction number, because it is equal to n+sod(n) for n = 6472821798 and 6472821807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6472821853) 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, 37077 + ... + 119667.

Almost surely, 2^6472821852 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 6472821852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9379808256).

6472821852 is an abundant number, since it is smaller than the sum of its proper divisors (12286794660).

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

6472821852 is a wasteful number, since it uses less digits than its factorization.

6472821852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82919 (or 82914 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 6472821852 is about 80453.8492056160. The cubic root of 6472821852 is about 1863.6508487697.

The spelling of 6472821852 in words is "six billion, four hundred seventy-two million, eight hundred twenty-one thousand, eight hundred fifty-two".