63432721003573 has 2 divisors, whose sum is σ = 63432721003574. Its totient is φ = 63432721003572.

The previous prime is 63432721003567. The next prime is 63432721003579. The reversal of 63432721003573 is 37530012723436.

63432721003573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (63432721003567) and next prime (63432721003579).

It can be written as a sum of positive squares in only one way, i.e., 48418467722244 + 15014253281329 = 6958338^2 + 3874823^2 .

It is a cyclic number.

It is not a de Polignac number, because 63432721003573 - 2⁵ = 63432721003541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63432721003579) 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 as a sum of consecutive naturals, namely, 31716360501786 + 31716360501787.

It is an arithmetic number, because the mean of its divisors is an integer number (31716360501787).

Almost surely, 2^{63432721003573} is an apocalyptic number.

It is an amenable number.

63432721003573 is a deficient number, since it is larger than the sum of its proper divisors (1).

63432721003573 is an equidigital number, since it uses as much as digits as its factorization.

63432721003573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 46.

The spelling of 63432721003573 in words is "sixty-three trillion, four hundred thirty-two billion, seven hundred twenty-one million, three thousand, five hundred seventy-three".