6465225647 has 12 divisors (see below), whose sum is σ = 6879516336. Its totient is φ = 6074630400.

The previous prime is 6465225623. The next prime is 6465225661. The reversal of 6465225647 is 7465225646.

It is not a de Polignac number, because 6465225647 - 2¹⁴ = 6465209263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6465225607) 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 11 ways as a sum of consecutive naturals, for example, 155078 + ... + 192300.

It is an arithmetic number, because the mean of its divisors is an integer number (573293028).

Almost surely, 2^6465225647 is an apocalyptic number.

6465225647 is a deficient number, since it is larger than the sum of its proper divisors (414290689).

6465225647 is a wasteful number, since it uses less digits than its factorization.

6465225647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37858 (or 37841 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 47.

The square root of 6465225647 is about 80406.6268848532. The cubic root of 6465225647 is about 1862.9215318553.

Subtracting 6465225647 from its reverse (7465225646), we obtain a palindrome (999999999).

The spelling of 6465225647 in words is "six billion, four hundred sixty-five million, two hundred twenty-five thousand, six hundred forty-seven".