128375349427 has 16 divisors (see below), whose sum is σ = 139220944128. Its totient is φ = 117669031200.

The previous prime is 128375349419. The next prime is 128375349433. The reversal of 128375349427 is 724943573821.

It is a cyclic number.

It is not a de Polignac number, because 128375349427 - 2³ = 128375349419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128375349437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5569308 + ... + 5592310.

It is an arithmetic number, because the mean of its divisors is an integer number (8701309008).

Almost surely, 2^128375349427 is an apocalyptic number.

128375349427 is a deficient number, since it is larger than the sum of its proper divisors (10845594701).

128375349427 is a wasteful number, since it uses less digits than its factorization.

128375349427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26010.

The product of its digits is 10160640, while the sum is 55.

The spelling of 128375349427 in words is "one hundred twenty-eight billion, three hundred seventy-five million, three hundred forty-nine thousand, four hundred twenty-seven".