42728979192 has 128 divisors (see below), whose sum is σ = 112645209600. Its totient is φ = 13480422912.

The previous prime is 42728979173. The next prime is 42728979193. The reversal of 42728979192 is 29197982724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42728979193) 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, 28618798 + ... + 28620290.

It is an arithmetic number, because the mean of its divisors is an integer number (880040700).

Almost surely, 2^42728979192 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 42728979192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56322604800).

42728979192 is an abundant number, since it is smaller than the sum of its proper divisors (69916230408).

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

42728979192 is a wasteful number, since it uses less digits than its factorization.

42728979192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037 (or 2033 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 60.

The spelling of 42728979192 in words is "forty-two billion, seven hundred twenty-eight million, nine hundred seventy-nine thousand, one hundred ninety-two".