128444124880512 has 192 divisors, whose sum is σ = 422420950748160. Its totient is φ = 36697628067840.

The previous prime is 128444124880499. The next prime is 128444124880523. The reversal of 128444124880512 is 215088421444821.

128444124880512 is a `hidden beast` number, since 1 + 2 + 8 + 4 + 4 + 4 + 1 + 2 + 48 + 80 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552614562 + ... + 552846942.

It is an arithmetic number, because the mean of its divisors is an integer number (2200109118480).

Almost surely, 2^{128444124880512} is an apocalyptic number.

128444124880512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128444124880512 is an abundant number, since it is smaller than the sum of its proper divisors (293976825867648).

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

128444124880512 is a wasteful number, since it uses less digits than its factorization.

128444124880512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300951 (or 300936 counting only the distinct ones).

The product of its (nonzero) digits is 5242880, while the sum is 54.

The spelling of 128444124880512 in words is "one hundred twenty-eight trillion, four hundred forty-four billion, one hundred twenty-four million, eight hundred eighty thousand, five hundred twelve".