42728529688 has 32 divisors (see below), whose sum is σ = 86300701200. Its totient is φ = 19715845248.

The previous prime is 42728529673. The next prime is 42728529713. The reversal of 42728529688 is 88692582724.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 375483 + ... + 475861.

Almost surely, 2^42728529688 is an apocalyptic number.

It is an amenable number.

42728529688 is an abundant number, since it is smaller than the sum of its proper divisors (43572171512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42728529688 is a wasteful number, since it uses less digits than its factorization.

42728529688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104491 (or 104487 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 61.

The spelling of 42728529688 in words is "forty-two billion, seven hundred twenty-eight million, five hundred twenty-nine thousand, six hundred eighty-eight".