128875015140 has 48 divisors (see below), whose sum is σ = 360914121792. Its totient is φ = 34360567936.

The previous prime is 128875015079. The next prime is 128875015141. The reversal of 128875015140 is 41510578821.

It is a junction number, because it is equal to n+sod(n) for n = 128875015092 and 128875015101.

It is not an unprimeable number, because it can be changed into a prime (128875015141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 155167 + ... + 530873.

It is an arithmetic number, because the mean of its divisors is an integer number (7519044204).

Almost surely, 2^128875015140 is an apocalyptic number.

128875015140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128875015140 is an abundant number, since it is smaller than the sum of its proper divisors (232039106652).

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

128875015140 is a wasteful number, since it uses less digits than its factorization.

128875015140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381436 (or 381434 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 42.

The spelling of 128875015140 in words is "one hundred twenty-eight billion, eight hundred seventy-five million, fifteen thousand, one hundred forty".