6442520504 has 32 divisors (see below), whose sum is σ = 13934436480. Its totient is φ = 2735273184.

The previous prime is 6442520473. The next prime is 6442520509. The reversal of 6442520504 is 4050252446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442520509) 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 7 ways as a sum of consecutive naturals, for example, 531602 + ... + 543585.

It is an arithmetic number, because the mean of its divisors is an integer number (435451140).

Almost surely, 2^6442520504 is an apocalyptic number.

It is an amenable number.

6442520504 is an abundant number, since it is smaller than the sum of its proper divisors (7491915976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6442520504 is a wasteful number, since it uses less digits than its factorization.

6442520504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075307 (or 1075303 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 6442520504 is about 80265.3132056432. The cubic root of 6442520504 is about 1860.7381838912.

The spelling of 6442520504 in words is "six billion, four hundred forty-two million, five hundred twenty thousand, five hundred four".