6432644532513 has 16 divisors (see below), whose sum is σ = 8614614797120. Its totient is φ = 4269553291584.

The previous prime is 6432644532493. The next prime is 6432644532539. The reversal of 6432644532513 is 3152354462346.

It is not a de Polignac number, because 6432644532513 - 2⁹ = 6432644532001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6432644537513) 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 15 ways as a sum of consecutive naturals, for example, 21542370 + ... + 21838932.

It is an arithmetic number, because the mean of its divisors is an integer number (538413424820).

Almost surely, 2^{6432644532513} is an apocalyptic number.

It is an amenable number.

6432644532513 is a deficient number, since it is larger than the sum of its proper divisors (2181970264607).

6432644532513 is a wasteful number, since it uses less digits than its factorization.

6432644532513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328368.

The product of its digits is 6220800, while the sum is 48.

Adding to 6432644532513 its reverse (3152354462346), we get a palindrome (9584998994859).

The spelling of 6432644532513 in words is "six trillion, four hundred thirty-two billion, six hundred forty-four million, five hundred thirty-two thousand, five hundred thirteen".