128426827027 has 8 divisors (see below), whose sum is σ = 130087157760. Its totient is φ = 126769187400.

The previous prime is 128426826929. The next prime is 128426827031. The reversal of 128426827027 is 720728624821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128426827027 - 2²⁷ = 128292609299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128426827327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576627 + ... + 767692.

It is an arithmetic number, because the mean of its divisors is an integer number (16260894720).

Almost surely, 2^128426827027 is an apocalyptic number.

128426827027 is a deficient number, since it is larger than the sum of its proper divisors (1660330733).

128426827027 is a wasteful number, since it uses less digits than its factorization.

128426827027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345553.

The product of its (nonzero) digits is 1204224, while the sum is 49.

The spelling of 128426827027 in words is "one hundred twenty-eight billion, four hundred twenty-six million, eight hundred twenty-seven thousand, twenty-seven".