128472254020 has 144 divisors (see below), whose sum is σ = 311206383936. Its totient is φ = 44175456000.

The previous prime is 128472254003. The next prime is 128472254059. The reversal of 128472254020 is 20452274821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54878050 + ... + 54880390.

It is an arithmetic number, because the mean of its divisors is an integer number (2161155444).

Almost surely, 2^128472254020 is an apocalyptic number.

128472254020 is a gapful number since it is divisible by the number (10) 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 128472254020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155603191968).

128472254020 is an abundant number, since it is smaller than the sum of its proper divisors (182734129916).

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

128472254020 is a wasteful number, since it uses less digits than its factorization.

128472254020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 37.

The spelling of 128472254020 in words is "one hundred twenty-eight billion, four hundred seventy-two million, two hundred fifty-four thousand, twenty".