428106691328 has 36 divisors (see below), whose sum is σ = 854608500480. Its totient is φ = 214036460544.

The previous prime is 428106691319. The next prime is 428106691351. The reversal of 428106691328 is 823196601824.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3578138 + ... + 3695846.

Almost surely, 2^428106691328 is an apocalyptic number.

It is an amenable number.

428106691328 is a deficient number, since it is larger than the sum of its proper divisors (426501809152).

428106691328 is a wasteful number, since it uses less digits than its factorization.

428106691328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131932 (or 131918 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 50.

The spelling of 428106691328 in words is "four hundred twenty-eight billion, one hundred six million, six hundred ninety-one thousand, three hundred twenty-eight".