128331247480 has 32 divisors (see below), whose sum is σ = 288756900000. Its totient is φ = 51330438016.

The previous prime is 128331247469. The next prime is 128331247483. The reversal of 128331247480 is 84742133821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128331247483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302429 + ... + 1397491.

It is an arithmetic number, because the mean of its divisors is an integer number (9023653125).

Almost surely, 2^128331247480 is an apocalyptic number.

128331247480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128331247480 is an abundant number, since it is smaller than the sum of its proper divisors (160425652520).

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

128331247480 is a wasteful number, since it uses less digits than its factorization.

128331247480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128823 (or 128819 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 128331247480 in words is "one hundred twenty-eight billion, three hundred thirty-one million, two hundred forty-seven thousand, four hundred eighty".