428064609227 has 16 divisors (see below), whose sum is σ = 474240033792. Its totient is φ = 384317450880.

The previous prime is 428064609151. The next prime is 428064609233. The reversal of 428064609227 is 722906460824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 428064609227 - 2³⁶ = 359345132491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428064639227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1348049 + ... + 1635042.

It is an arithmetic number, because the mean of its divisors is an integer number (29640002112).

Almost surely, 2^428064609227 is an apocalyptic number.

428064609227 is a deficient number, since it is larger than the sum of its proper divisors (46175424565).

428064609227 is a wasteful number, since it uses less digits than its factorization.

428064609227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983498.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 428064609227 in words is "four hundred twenty-eight billion, sixty-four million, six hundred nine thousand, two hundred twenty-seven".