128518299000 has 1024 divisors, whose sum is σ = 577414656000. Its totient is φ = 25679462400.

The previous prime is 128518298999. The next prime is 128518299001. The reversal of 128518299000 is 992815821.

128518299000 is a `hidden beast` number, since 1 + 28 + 518 + 29 + 90 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (128518298999) and next prime (128518299001).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128518299001) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 46681624 + ... + 46684376.

It is an arithmetic number, because the mean of its divisors is an integer number (563881500).

Almost surely, 2^128518299000 is an apocalyptic number.

128518299000 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 128518299000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288707328000).

128518299000 is an abundant number, since it is smaller than the sum of its proper divisors (448896357000).

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

128518299000 is a wasteful number, since it uses less digits than its factorization.

128518299000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822 (or 2802 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 128518299000 in words is "one hundred twenty-eight billion, five hundred eighteen million, two hundred ninety-nine thousand".