128725148346 has 16 divisors (see below), whose sum is σ = 258938450784. Its totient is φ = 42660357104.

The previous prime is 128725148297. The next prime is 128725148359. The reversal of 128725148346 is 643841527821.

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, 62005296 + ... + 62007371.

It is an arithmetic number, because the mean of its divisors is an integer number (16183653174).

Almost surely, 2^128725148346 is an apocalyptic number.

128725148346 is an abundant number, since it is smaller than the sum of its proper divisors (130213302438).

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

128725148346 is a wasteful number, since it uses less digits than its factorization.

128725148346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124012845.

The product of its digits is 2580480, while the sum is 51.

The spelling of 128725148346 in words is "one hundred twenty-eight billion, seven hundred twenty-five million, one hundred forty-eight thousand, three hundred forty-six".