8646125620128 has 48 divisors (see below), whose sum is σ = 22748738979456. Its totient is φ = 2875354987520.

The previous prime is 8646125620079. The next prime is 8646125620141. The reversal of 8646125620128 is 8210265216468.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104441001 + ... + 104523752.

It is an arithmetic number, because the mean of its divisors is an integer number (473932062072).

Almost surely, 2^{8646125620128} is an apocalyptic number.

It is an amenable number.

8646125620128 is an abundant number, since it is smaller than the sum of its proper divisors (14102613359328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8646125620128 is a wasteful number, since it uses less digits than its factorization.

8646125620128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208965197 (or 208965189 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 8646125620128 in words is "eight trillion, six hundred forty-six billion, one hundred twenty-five million, six hundred twenty thousand, one hundred twenty-eight".