6465394425 has 36 divisors (see below), whose sum is σ = 12434675856. Its totient is φ = 2955607200.

The previous prime is 6465394421. The next prime is 6465394459. The reversal of 6465394425 is 5244935646.

It is not a de Polignac number, because 6465394425 - 2² = 6465394421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6465394421) 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 35 ways as a sum of consecutive naturals, for example, 875971 + ... + 883320.

Almost surely, 2^6465394425 is an apocalyptic number.

It is an amenable number.

6465394425 is a deficient number, since it is larger than the sum of its proper divisors (5969281431).

6465394425 is a wasteful number, since it uses less digits than its factorization.

6465394425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759318 (or 1759306 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 48.

The square root of 6465394425 is about 80407.6764059253. The cubic root of 6465394425 is about 1862.9377425519.

The spelling of 6465394425 in words is "six billion, four hundred sixty-five million, three hundred ninety-four thousand, four hundred twenty-five".