63918916634204 has 24 divisors (see below), whose sum is σ = 113692569543168. Its totient is φ = 31435332027840.

The previous prime is 63918916634117. The next prime is 63918916634213. The reversal of 63918916634204 is 40243661981936.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41920997 + ... + 43418979.

It is an arithmetic number, because the mean of its divisors is an integer number (4737190397632).

Almost surely, 2^{63918916634204} is an apocalyptic number.

It is an amenable number.

63918916634204 is a deficient number, since it is larger than the sum of its proper divisors (49773652908964).

63918916634204 is a wasteful number, since it uses less digits than its factorization.

63918916634204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672925 (or 1672923 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 62.

The spelling of 63918916634204 in words is "sixty-three trillion, nine hundred eighteen billion, nine hundred sixteen million, six hundred thirty-four thousand, two hundred four".