128131858276 has 6 divisors (see below), whose sum is σ = 224230751990. Its totient is φ = 64065929136.

The previous prime is 128131858213. The next prime is 128131858301. The reversal of 128131858276 is 672858131821.

128131858276 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 112848964900 + 15282893376 = 335930^2 + 123624^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16016482281 + ... + 16016482288.

Almost surely, 2^128131858276 is an apocalyptic number.

It is an amenable number.

128131858276 is a deficient number, since it is larger than the sum of its proper divisors (96098893714).

128131858276 is a wasteful number, since it uses less digits than its factorization.

128131858276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32032964573 (or 32032964571 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 52.

The spelling of 128131858276 in words is "one hundred twenty-eight billion, one hundred thirty-one million, eight hundred fifty-eight thousand, two hundred seventy-six".