42728226588 has 144 divisors (see below), whose sum is σ = 113772072960. Its totient is φ = 13506336000.

The previous prime is 42728226539. The next prime is 42728226599. The reversal of 42728226588 is 88562282724.

42728226588 is a `hidden beast` number, since 4 + 27 + 282 + 265 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10473133 + ... + 10477211.

It is an arithmetic number, because the mean of its divisors is an integer number (790083840).

Almost surely, 2^42728226588 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 42728226588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56886036480).

42728226588 is an abundant number, since it is smaller than the sum of its proper divisors (71043846372).

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

42728226588 is a wasteful number, since it uses less digits than its factorization.

42728226588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328 (or 4323 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The spelling of 42728226588 in words is "forty-two billion, seven hundred twenty-eight million, two hundred twenty-six thousand, five hundred eighty-eight".