128542193000 has 128 divisors (see below), whose sum is σ = 338010865920. Its totient is φ = 45398073600.

The previous prime is 128542192991. The next prime is 128542193047. The reversal of 128542193000 is 391245821.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84047 + ... + 513953.

It is an arithmetic number, because the mean of its divisors is an integer number (2640709890).

Almost surely, 2^128542193000 is an apocalyptic number.

128542193000 is a gapful number since it is divisible by the number (10) 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 128542193000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169005432960).

128542193000 is an abundant number, since it is smaller than the sum of its proper divisors (209468672920).

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

128542193000 is a wasteful number, since it uses less digits than its factorization.

128542193000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429964 (or 429950 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 128542193000 in words is "one hundred twenty-eight billion, five hundred forty-two million, one hundred ninety-three thousand".