128730555030 has 512 divisors, whose sum is σ = 441009930240. Its totient is φ = 23201095680.

The previous prime is 128730555029. The next prime is 128730555061. The reversal of 128730555030 is 30555037821.

It is a self number, because there is not a number n which added to its sum of digits gives 128730555030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 27604479 + ... + 27609141.

It is an arithmetic number, because the mean of its divisors is an integer number (861347520).

Almost surely, 2^128730555030 is an apocalyptic number.

128730555030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128730555030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220504965120).

128730555030 is an abundant number, since it is smaller than the sum of its proper divisors (312279375210).

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

128730555030 is a wasteful number, since it uses less digits than its factorization.

128730555030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 128730555030 in words is "one hundred twenty-eight billion, seven hundred thirty million, five hundred fifty-five thousand, thirty".