6443464325 has 12 divisors (see below), whose sum is σ = 8265410340. Its totient is φ = 4977020160.

The previous prime is 6443464289. The next prime is 6443464327. The reversal of 6443464325 is 5234643446.

It can be written as a sum of positive squares in 6 ways, for example, as 466473604 + 5976990721 = 21598^2 + 77311^2 .

It is not a de Polignac number, because 6443464325 - 2¹² = 6443460229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443464327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4443044 + ... + 4444493.

It is an arithmetic number, because the mean of its divisors is an integer number (688784195).

Almost surely, 2^6443464325 is an apocalyptic number.

It is an amenable number.

6443464325 is a deficient number, since it is larger than the sum of its proper divisors (1821946015).

6443464325 is a wasteful number, since it uses less digits than its factorization.

6443464325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8887576 (or 8887571 counting only the distinct ones).

The product of its digits is 829440, while the sum is 41.

The square root of 6443464325 is about 80271.1923731048. The cubic root of 6443464325 is about 1860.8290447077.

The spelling of 6443464325 in words is "six billion, four hundred forty-three million, four hundred sixty-four thousand, three hundred twenty-five".