42757421184 has 128 divisors (see below), whose sum is σ = 126272491200. Its totient is φ = 14243586048.

The previous prime is 42757421183. The next prime is 42757421197. The reversal of 42757421184 is 48112475724.

42757421184 is a `hidden beast` number, since 42 + 7 + 5 + 7 + 421 + 184 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (42757421183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7852767 + ... + 7858209.

Almost surely, 2^42757421184 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 42757421184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63136245600).

42757421184 is an abundant number, since it is smaller than the sum of its proper divisors (83515070016).

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

42757421184 is a wasteful number, since it uses less digits than its factorization.

42757421184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7739 (or 7721 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The spelling of 42757421184 in words is "forty-two billion, seven hundred fifty-seven million, four hundred twenty-one thousand, one hundred eighty-four".