128357942232 has 128 divisors (see below), whose sum is σ = 353844691200. Its totient is φ = 38551306752.

The previous prime is 128357942183. The next prime is 128357942233. The reversal of 128357942232 is 232249753821.

It is a super-3 number, since 3×128357942232³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128357942233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39749994 + ... + 39753222.

It is an arithmetic number, because the mean of its divisors is an integer number (2764411650).

Almost surely, 2^128357942232 is an apocalyptic number.

128357942232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128357942232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176922345600).

128357942232 is an abundant number, since it is smaller than the sum of its proper divisors (225486748968).

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

128357942232 is a wasteful number, since it uses less digits than its factorization.

128357942232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257 (or 6253 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 128357942232 in words is "one hundred twenty-eight billion, three hundred fifty-seven million, nine hundred forty-two thousand, two hundred thirty-two".