6432738006520 has 96 divisors (see below), whose sum is σ = 17291753462880. Its totient is φ = 2145901766400.

The previous prime is 6432738006517. The next prime is 6432738006529. The reversal of 6432738006520 is 256008372346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6432738006529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44278956 + ... + 44423995.

It is an arithmetic number, because the mean of its divisors is an integer number (180122431905).

Almost surely, 2^{6432738006520} is an apocalyptic number.

It is an amenable number.

6432738006520 is an abundant number, since it is smaller than the sum of its proper divisors (10859015456360).

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

6432738006520 is a wasteful number, since it uses less digits than its factorization.

6432738006520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88703013 (or 88703002 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 6432738006520 in words is "six trillion, four hundred thirty-two billion, seven hundred thirty-eight million, six thousand, five hundred twenty".