42521155043142 has 32 divisors (see below), whose sum is σ = 87822449602560. Its totient is φ = 13710745503360.

The previous prime is 42521155043141. The next prime is 42521155043161. The reversal of 42521155043142 is 24134055112524.

It is a self number, because there is not a number n which added to its sum of digits gives 42521155043142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42521155043141) 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, 47523267 + ... + 48409742.

It is an arithmetic number, because the mean of its divisors is an integer number (2744451550080).

Almost surely, 2^{42521155043142} is an apocalyptic number.

42521155043142 is an abundant number, since it is smaller than the sum of its proper divisors (45301294559418).

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

42521155043142 is a wasteful number, since it uses less digits than its factorization.

42521155043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95935428.

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 42521155043142 in words is "forty-two trillion, five hundred twenty-one billion, one hundred fifty-five million, forty-three thousand, one hundred forty-two".