128289745260 has 72 divisors (see below), whose sum is σ = 392715763440. Its totient is φ = 33896734848.

The previous prime is 128289745247. The next prime is 128289745271. The reversal of 128289745260 is 62547982821.

128289745260 is a `hidden beast` number, since 1 + 2 + 8 + 28 + 97 + 4 + 526 + 0 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 128289745197 and 128289745206.

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, 3249742 + ... + 3288981.

Almost surely, 2^128289745260 is an apocalyptic number.

128289745260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128289745260 is an abundant number, since it is smaller than the sum of its proper divisors (264426018180).

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

128289745260 is a wasteful number, since it uses less digits than its factorization.

128289745260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538847 (or 6538842 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 128289745260 in words is "one hundred twenty-eight billion, two hundred eighty-nine million, seven hundred forty-five thousand, two hundred sixty".