128270512827 has 6 divisors (see below), whose sum is σ = 185279629652. Its totient is φ = 85513675212.

The previous prime is 128270512819. The next prime is 128270512831. The reversal of 128270512827 is 728215072821.

128270512827 is a `hidden beast` number, since 128 + 2 + 7 + 0 + 512 + 8 + 2 + 7 = 666.

It is not a de Polignac number, because 128270512827 - 2³ = 128270512819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128270512327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7126139593 + ... + 7126139610.

Almost surely, 2^128270512827 is an apocalyptic number.

128270512827 is a deficient number, since it is larger than the sum of its proper divisors (57009116825).

128270512827 is a wasteful number, since it uses less digits than its factorization.

128270512827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14252279209 (or 14252279206 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 128270512827 in words is "one hundred twenty-eight billion, two hundred seventy million, five hundred twelve thousand, eight hundred twenty-seven".