6442634325 has 24 divisors (see below), whose sum is σ = 10707036928. Its totient is φ = 3418260480.

The previous prime is 6442634321. The next prime is 6442634339. The reversal of 6442634325 is 5234362446.

It is not a de Polignac number, because 6442634325 - 2² = 6442634321 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 (6442634321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208069 + ... + 237018.

Almost surely, 2^6442634325 is an apocalyptic number.

It is an amenable number.

6442634325 is a deficient number, since it is larger than the sum of its proper divisors (4264402603).

6442634325 is a wasteful number, since it uses less digits than its factorization.

6442634325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445293 (or 445288 counting only the distinct ones).

The product of its digits is 414720, while the sum is 39.

The square root of 6442634325 is about 80266.0222323244. The cubic root of 6442634325 is about 1860.7491418091.

The spelling of 6442634325 in words is "six billion, four hundred forty-two million, six hundred thirty-four thousand, three hundred twenty-five".