128257558312 has 32 divisors (see below), whose sum is σ = 258996374280. Its totient is φ = 59192421120.

The previous prime is 128257558201. The next prime is 128257558349. The reversal of 128257558312 is 213855752821.

It can be written as a sum of positive squares in 4 ways, for example, as 117356945476 + 10900612836 = 342574^2 + 104406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3464862 + ... + 3501682.

Almost surely, 2^128257558312 is an apocalyptic number.

It is an amenable number.

128257558312 is an abundant number, since it is smaller than the sum of its proper divisors (130738815968).

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

128257558312 is a wasteful number, since it uses less digits than its factorization.

128257558312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70333 (or 70329 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 49.

The spelling of 128257558312 in words is "one hundred twenty-eight billion, two hundred fifty-seven million, five hundred fifty-eight thousand, three hundred twelve".