128487074976 has 144 divisors (see below), whose sum is σ = 404127012744. Its totient is φ = 38465943552.

The previous prime is 128487074929. The next prime is 128487074983. The reversal of 128487074976 is 679470784821.

128487074976 is a `hidden beast` number, since 12 + 8 + 487 + 0 + 74 + 9 + 76 = 666.

128487074976 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 123816719376 + 4670355600 = 351876^2 + 68340^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325231 + ... + 602286.

Almost surely, 2^128487074976 is an apocalyptic number.

128487074976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128487074976 is an abundant number, since it is smaller than the sum of its proper divisors (275639937768).

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

128487074976 is a wasteful number, since it uses less digits than its factorization.

128487074976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927583 (or 927572 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 63.

The spelling of 128487074976 in words is "one hundred twenty-eight billion, four hundred eighty-seven million, seventy-four thousand, nine hundred seventy-six".