128601038580 has 96 divisors (see below), whose sum is σ = 418498375680. Its totient is φ = 28896305280.

The previous prime is 128601038441. The next prime is 128601038603. The reversal of 128601038580 is 85830106821.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 2570076 + ... + 2619635.

It is an arithmetic number, because the mean of its divisors is an integer number (4359358080).

Almost surely, 2^128601038580 is an apocalyptic number.

128601038580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128601038580 is an abundant number, since it is smaller than the sum of its proper divisors (289897337100).

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

128601038580 is a wasteful number, since it uses less digits than its factorization.

128601038580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189789 (or 5189787 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 128601038580 in words is "one hundred twenty-eight billion, six hundred one million, thirty-eight thousand, five hundred eighty".