128743337928 has 16 divisors (see below), whose sum is σ = 321858344880. Its totient is φ = 42914445968.

The previous prime is 128743337923. The next prime is 128743337929. The reversal of 128743337928 is 829733347821.

It is not an unprimeable number, because it can be changed into a prime (128743337923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2682152850 + ... + 2682152897.

It is an arithmetic number, because the mean of its divisors is an integer number (20116146555).

Almost surely, 2^128743337928 is an apocalyptic number.

It is an amenable number.

128743337928 is an abundant number, since it is smaller than the sum of its proper divisors (193115006952).

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

128743337928 is a wasteful number, since it uses less digits than its factorization.

128743337928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364305756 (or 5364305752 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 57.

The spelling of 128743337928 in words is "one hundred twenty-eight billion, seven hundred forty-three million, three hundred thirty-seven thousand, nine hundred twenty-eight".