128568000000 has 560 divisors, whose sum is σ = 468016509312. Its totient is φ = 31104000000.

The previous prime is 128567999939. The next prime is 128568000047. The reversal of 128568000000 is 865821.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 263999757 + ... + 264000243.

Almost surely, 2^128568000000 is an apocalyptic number.

128568000000 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 128568000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234008254656).

128568000000 is an abundant number, since it is smaller than the sum of its proper divisors (339448509312).

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

128568000000 is an frugal number, since it uses more digits than its factorization.

128568000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

Adding to 128568000000 its reverse (865821), we get a palindrome (128568865821).

The spelling of 128568000000 in words is "one hundred twenty-eight billion, five hundred sixty-eight million", and thus it is an aban number.