6464316425 has 36 divisors (see below), whose sum is σ = 9339492636. Its totient is φ = 4425523200.

The previous prime is 6464316421. The next prime is 6464316449. The reversal of 6464316425 is 5246134646.

It can be written as a sum of positive squares in 6 ways, for example, as 586947529 + 5877368896 = 24227^2 + 76664^2 .

It is not a de Polignac number, because 6464316425 - 2² = 6464316421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6464316421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 820505 + ... + 828345.

It is an arithmetic number, because the mean of its divisors is an integer number (259430351).

Almost surely, 2^6464316425 is an apocalyptic number.

It is an amenable number.

6464316425 is a deficient number, since it is larger than the sum of its proper divisors (2875176211).

6464316425 is a wasteful number, since it uses less digits than its factorization.

6464316425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8538 (or 8526 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The square root of 6464316425 is about 80400.9727864035. The cubic root of 6464316425 is about 1862.8341985462.

The spelling of 6464316425 in words is "six billion, four hundred sixty-four million, three hundred sixteen thousand, four hundred twenty-five".