42521102465442 has 16 divisors (see below), whose sum is σ = 88739692102080. Its totient is φ = 13557452959952.

The previous prime is 42521102465423. The next prime is 42521102465447. The reversal of 42521102465442 is 24456420112524.

42521102465442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42521102465394 and 42521102465403.

It is not an unprimeable number, because it can be changed into a prime (42521102465447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154061965317 + ... + 154061965592.

It is an arithmetic number, because the mean of its divisors is an integer number (5546230756380).

Almost surely, 2^{42521102465442} is an apocalyptic number.

42521102465442 is an abundant number, since it is smaller than the sum of its proper divisors (46218589636638).

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

42521102465442 is a wasteful number, since it uses less digits than its factorization.

42521102465442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308123930937.

The product of its (nonzero) digits is 614400, while the sum is 42.

Adding to 42521102465442 its reverse (24456420112524), we get a palindrome (66977522577966).

The spelling of 42521102465442 in words is "forty-two trillion, five hundred twenty-one billion, one hundred two million, four hundred sixty-five thousand, four hundred forty-two".