63432721003673 has 8 divisors (see below), whose sum is σ = 72576638566848. Its totient is φ = 54309328509744.

The previous prime is 63432721003657. The next prime is 63432721003723. The reversal of 63432721003673 is 37630012723436.

63432721003673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63432721003673 - 2⁴ = 63432721003657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63432721003633) 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 7 ways as a sum of consecutive naturals, for example, 5131260686 + ... + 5131273047.

It is an arithmetic number, because the mean of its divisors is an integer number (9072079820856).

Almost surely, 2^{63432721003673} is an apocalyptic number.

It is an amenable number.

63432721003673 is a deficient number, since it is larger than the sum of its proper divisors (9143917563175).

63432721003673 is a wasteful number, since it uses less digits than its factorization.

63432721003673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262534623.

The product of its (nonzero) digits is 2286144, while the sum is 47.

The spelling of 63432721003673 in words is "sixty-three trillion, four hundred thirty-two billion, seven hundred twenty-one million, three thousand, six hundred seventy-three".