42424043221128 has 128 divisors (see below), whose sum is σ = 112550974381440. Its totient is φ = 13279652352000.

The previous prime is 42424043221127. The next prime is 42424043221163. The reversal of 42424043221128 is 82112234042424.

It is not an unprimeable number, because it can be changed into a prime (42424043221127) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 578491423 + ... + 578564753.

It is an arithmetic number, because the mean of its divisors is an integer number (879304487355).

Almost surely, 2^{42424043221128} 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 42424043221128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56275487190720).

42424043221128 is an abundant number, since it is smaller than the sum of its proper divisors (70126931160312).

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

42424043221128 is a wasteful number, since it uses less digits than its factorization.

42424043221128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76519 (or 76515 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 39.

The spelling of 42424043221128 in words is "forty-two trillion, four hundred twenty-four billion, forty-three million, two hundred twenty-one thousand, one hundred twenty-eight".