42544021552 has 20 divisors (see below), whose sum is σ = 85088044096. Its totient is φ = 20585816640.

The previous prime is 42544021529. The next prime is 42544021591. The reversal of 42544021552 is 25512044524.

42544021552 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42886623 + ... + 42887614.

Almost surely, 2^42544021552 is an apocalyptic number.

It is an amenable number.

42544021552 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42544021552 is a wasteful number, since it uses less digits than its factorization.

42544021552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85774276 (or 85774270 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

The spelling of 42544021552 in words is "forty-two billion, five hundred forty-four million, twenty-one thousand, five hundred fifty-two".