6445464852 has 12 divisors (see below), whose sum is σ = 15039418016. Its totient is φ = 2148488280.

The previous prime is 6445464841. The next prime is 6445464859. The reversal of 6445464852 is 2584645446.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445464859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268561024 + ... + 268561047.

Almost surely, 2^6445464852 is an apocalyptic number.

It is an amenable number.

6445464852 is an abundant number, since it is smaller than the sum of its proper divisors (8593953164).

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

6445464852 is a wasteful number, since it uses less digits than its factorization.

6445464852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537122078 (or 537122076 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 48.

The square root of 6445464852 is about 80283.6524580191. The cubic root of 6445464852 is about 1861.0216043497.

The spelling of 6445464852 in words is "six billion, four hundred forty-five million, four hundred sixty-four thousand, eight hundred fifty-two".