128941520468 has 24 divisors (see below), whose sum is σ = 227529708000. Its totient is φ = 63934433568.

The previous prime is 128941520431. The next prime is 128941520479. The reversal of 128941520468 is 864025149821.

128941520468 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194171 + ... + 543677.

It is an arithmetic number, because the mean of its divisors is an integer number (9480404500).

Almost surely, 2^128941520468 is an apocalyptic number.

It is an amenable number.

128941520468 is a deficient number, since it is larger than the sum of its proper divisors (98588187532).

128941520468 is a wasteful number, since it uses less digits than its factorization.

128941520468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350279 (or 350277 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 128941520468 in words is "one hundred twenty-eight billion, nine hundred forty-one million, five hundred twenty thousand, four hundred sixty-eight".