6445596344 has 32 divisors (see below), whose sum is σ = 13187942640. Its totient is φ = 2928979200.

The previous prime is 6445596343. The next prime is 6445596371. The reversal of 6445596344 is 4436955446.

It is a junction number, because it is equal to n+sod(n) for n = 6445596292 and 6445596301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445596343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382562 + ... + 399054.

Almost surely, 2^6445596344 is an apocalyptic number.

It is an amenable number.

6445596344 is an abundant number, since it is smaller than the sum of its proper divisors (6742346296).

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

6445596344 is a wasteful number, since it uses less digits than its factorization.

6445596344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20951 (or 20947 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 50.

The square root of 6445596344 is about 80284.4713752292. The cubic root of 6445596344 is about 1861.0342596453.

The spelling of 6445596344 in words is "six billion, four hundred forty-five million, five hundred ninety-six thousand, three hundred forty-four".