63681500212 has 48 divisors (see below), whose sum is σ = 122056526592. Its totient is φ = 28831380480.

The previous prime is 63681500177. The next prime is 63681500219. The reversal of 63681500212 is 21200518636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63681500219) 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, 23471368 + ... + 23474080.

It is an arithmetic number, because the mean of its divisors is an integer number (2542844304).

Almost surely, 2^63681500212 is an apocalyptic number.

It is an amenable number.

63681500212 is a deficient number, since it is larger than the sum of its proper divisors (58375026380).

63681500212 is a wasteful number, since it uses less digits than its factorization.

63681500212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648 (or 4646 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 63681500212 in words is "sixty-three billion, six hundred eighty-one million, five hundred thousand, two hundred twelve".