128374665272 has 96 divisors (see below), whose sum is σ = 282681331200. Its totient is φ = 54492528384.

The previous prime is 128374665247. The next prime is 128374665299. The reversal of 128374665272 is 272566473821.

128374665272 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35295038 + ... + 35298674.

It is an arithmetic number, because the mean of its divisors is an integer number (2944597200).

Almost surely, 2^128374665272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128374665272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141340665600).

128374665272 is an abundant number, since it is smaller than the sum of its proper divisors (154306665928).

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

128374665272 is a wasteful number, since it uses less digits than its factorization.

128374665272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493 (or 4482 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 53.

The spelling of 128374665272 in words is "one hundred twenty-eight billion, three hundred seventy-four million, six hundred sixty-five thousand, two hundred seventy-two".