63934657798 has 32 divisors (see below), whose sum is σ = 106245354240. Its totient is φ = 28610988000.

The previous prime is 63934657793. The next prime is 63934657811. The reversal of 63934657798 is 89775643936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63934657793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078593 + ... + 1136323.

It is an arithmetic number, because the mean of its divisors is an integer number (3320167320).

Almost surely, 2^63934657798 is an apocalyptic number.

63934657798 is a deficient number, since it is larger than the sum of its proper divisors (42310696442).

63934657798 is a wasteful number, since it uses less digits than its factorization.

63934657798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58524.

The product of its digits is 205752960, while the sum is 67.

The spelling of 63934657798 in words is "sixty-three billion, nine hundred thirty-four million, six hundred fifty-seven thousand, seven hundred ninety-eight".