63685322012 has 24 divisors (see below), whose sum is σ = 125240702496. Its totient is φ = 28115258688.

The previous prime is 63685321979. The next prime is 63685322027. The reversal of 63685322012 is 21022358636.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26623103 + ... + 26625494.

It is an arithmetic number, because the mean of its divisors is an integer number (5218362604).

Almost surely, 2^63685322012 is an apocalyptic number.

It is an amenable number.

63685322012 is a deficient number, since it is larger than the sum of its proper divisors (61555380484).

63685322012 is a wasteful number, since it uses less digits than its factorization.

63685322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53248637 (or 53248635 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 63685322012 in words is "sixty-three billion, six hundred eighty-five million, three hundred twenty-two thousand, twelve".