6445262441 has 16 divisors (see below), whose sum is σ = 7037779200. Its totient is φ = 5879236608.

The previous prime is 6445262413. The next prime is 6445262459. The reversal of 6445262441 is 1442625446.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6445262441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6445262395 and 6445262404.

It is not an unprimeable number, because it can be changed into a prime (6445262041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186281 + ... + 218153.

It is an arithmetic number, because the mean of its divisors is an integer number (439861200).

Almost surely, 2^6445262441 is an apocalyptic number.

It is an amenable number.

6445262441 is a deficient number, since it is larger than the sum of its proper divisors (592516759).

6445262441 is a wasteful number, since it uses less digits than its factorization.

6445262441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32288.

The product of its digits is 184320, while the sum is 38.

The square root of 6445262441 is about 80282.3918490225. The cubic root of 6445262441 is about 1861.0021232005.

Adding to 6445262441 its reverse (1442625446), we get a palindrome (7887887887).

The spelling of 6445262441 in words is "six billion, four hundred forty-five million, two hundred sixty-two thousand, four hundred forty-one".