63993069939172 has 216 divisors, whose sum is σ = 137907107543520. Its totient is φ = 25689523507200.

The previous prime is 63993069939031. The next prime is 63993069939247. The reversal of 63993069939172 is 27193996039936.

63993069939172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63993069939172² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 41798216047 + ... + 41798217577.

It is an arithmetic number, because the mean of its divisors is an integer number (638458831220).

Almost surely, 2^{63993069939172} is an apocalyptic number.

It is an amenable number.

63993069939172 is an abundant number, since it is smaller than the sum of its proper divisors (73914037604348).

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

63993069939172 is a wasteful number, since it uses less digits than its factorization.

63993069939172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 803538792, while the sum is 76.

The spelling of 63993069939172 in words is "sixty-three trillion, nine hundred ninety-three billion, sixty-nine million, nine hundred thirty-nine thousand, one hundred seventy-two".