128874115420 has 48 divisors (see below), whose sum is σ = 289131615360. Its totient is φ = 48107594304.

The previous prime is 128874115417. The next prime is 128874115421. The reversal of 128874115420 is 24511478821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128874115421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2505454 + ... + 2556373.

It is an arithmetic number, because the mean of its divisors is an integer number (6023575320).

Almost surely, 2^128874115420 is an apocalyptic number.

128874115420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128874115420 is an abundant number, since it is smaller than the sum of its proper divisors (160257499940).

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

128874115420 is a wasteful number, since it uses less digits than its factorization.

128874115420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061922 (or 5061920 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 128874115420 in words is "one hundred twenty-eight billion, eight hundred seventy-four million, one hundred fifteen thousand, four hundred twenty".