128600276971 has 4 divisors (see below), whose sum is σ = 128722637944. Its totient is φ = 128477916000.

The previous prime is 128600276939. The next prime is 128600277041. The reversal of 128600276971 is 179672006821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128600276971 - 2⁵ = 128600276939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128600271971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61178910 + ... + 61181011.

It is an arithmetic number, because the mean of its divisors is an integer number (32180659486).

Almost surely, 2^128600276971 is an apocalyptic number.

128600276971 is a deficient number, since it is larger than the sum of its proper divisors (122360973).

128600276971 is a wasteful number, since it uses less digits than its factorization.

128600276971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122360972.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 128600276971 in words is "one hundred twenty-eight billion, six hundred million, two hundred seventy-six thousand, nine hundred seventy-one".