6445841796 has 27 divisors (see below), whose sum is σ = 16294873413. Its totient is φ = 2148453360.

The previous prime is 6445841791. The next prime is 6445841797. The reversal of 6445841796 is 6971485446.

The square root of 6445841796 is 80286.

It is a perfect power (a square), and thus also a powerful number.

6445841796 is a `hidden beast` number, since 6 + 44 + 584 + 17 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 784784196 + 5661057600 = 28014^2 + 75240^2 .

It is not an unprimeable number, because it can be changed into a prime (6445841791) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 475026 + ... + 488406.

Almost surely, 2^6445841796 is an apocalyptic number.

6445841796 is the 80286-th square number.

It is an amenable number.

6445841796 is an abundant number, since it is smaller than the sum of its proper divisors (9849031617).

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

6445841796 is an equidigital number, since it uses as much as digits as its factorization.

6445841796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26772 (or 13386 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The cubic root of 6445841796 is about 1861.0578824289.

It can be divided in two parts, 6445 and 841796, that added together give a square (848241 = 921²).

The spelling of 6445841796 in words is "six billion, four hundred forty-five million, eight hundred forty-one thousand, seven hundred ninety-six".