129648394112 has 64 divisors (see below), whose sum is σ = 259793449200. Its totient is φ = 64446480384.

The previous prime is 129648394111. The next prime is 129648394121. The reversal of 129648394112 is 211493846921.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129648394111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15674714 + ... + 15682982.

Almost surely, 2^129648394112 is an apocalyptic number.

It is an amenable number.

129648394112 is an abundant number, since it is smaller than the sum of its proper divisors (130145055088).

129648394112 is an equidigital number, since it uses as much as digits as its factorization.

129648394112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983 (or 8971 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The spelling of 129648394112 in words is "one hundred twenty-nine billion, six hundred forty-eight million, three hundred ninety-four thousand, one hundred twelve".