42659975688 has 128 divisors (see below), whose sum is σ = 121791651840. Its totient is φ = 12333888000.

The previous prime is 42659975681. The next prime is 42659975693. The reversal of 42659975688 is 88657995624.

42659975688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42659975681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544356 + ... + 617772.

It is an arithmetic number, because the mean of its divisors is an integer number (951497280).

Almost surely, 2^42659975688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42659975688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60895825920).

42659975688 is an abundant number, since it is smaller than the sum of its proper divisors (79131676152).

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

42659975688 is a wasteful number, since it uses less digits than its factorization.

42659975688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73539 (or 73535 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 69.

The spelling of 42659975688 in words is "forty-two billion, six hundred fifty-nine million, nine hundred seventy-five thousand, six hundred eighty-eight".