128578662300 has 72 divisors (see below), whose sum is σ = 405841024512. Its totient is φ = 31170584000.

The previous prime is 128578662241. The next prime is 128578662301. The reversal of 128578662300 is 3266875821.

It is a self number, because there is not a number n which added to its sum of digits gives 128578662300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128578662301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19478316 + ... + 19484915.

It is an arithmetic number, because the mean of its divisors is an integer number (5636680896).

Almost surely, 2^128578662300 is an apocalyptic number.

128578662300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128578662300 is an abundant number, since it is smaller than the sum of its proper divisors (277262362212).

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

128578662300 is a wasteful number, since it uses less digits than its factorization.

128578662300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38963259 (or 38963252 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 128578662300 in words is "one hundred twenty-eight billion, five hundred seventy-eight million, six hundred sixty-two thousand, three hundred".