128601304452 has 96 divisors (see below), whose sum is σ = 351760640000. Its totient is φ = 40518146592.

The previous prime is 128601304451. The next prime is 128601304463. The reversal of 128601304452 is 254403106821.

It is a happy number.

128601304452 is a `hidden beast` number, since 1 + 2 + 8 + 601 + 3 + 0 + 4 + 45 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (128601304451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 829449 + ... + 972207.

Almost surely, 2^128601304452 is an apocalyptic number.

128601304452 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 128601304452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175880320000).

128601304452 is an abundant number, since it is smaller than the sum of its proper divisors (223159335548).

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

128601304452 is a wasteful number, since it uses less digits than its factorization.

128601304452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143230 (or 143222 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 128601304452 in words is "one hundred twenty-eight billion, six hundred one million, three hundred four thousand, four hundred fifty-two".