428106568538 has 16 divisors (see below), whose sum is σ = 705177351360. Its totient is φ = 193305192000.

The previous prime is 428106568537. The next prime is 428106568567. The reversal of 428106568538 is 835865601824.

It is not an unprimeable number, because it can be changed into a prime (428106568537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64431743 + ... + 64438386.

It is an arithmetic number, because the mean of its divisors is an integer number (44073584460).

Almost surely, 2^428106568538 is an apocalyptic number.

428106568538 is a deficient number, since it is larger than the sum of its proper divisors (277070782822).

428106568538 is a wasteful number, since it uses less digits than its factorization.

428106568538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128870293.

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 428106568538 in words is "four hundred twenty-eight billion, one hundred six million, five hundred sixty-eight thousand, five hundred thirty-eight".