42521606434 has 16 divisors (see below), whose sum is σ = 67145302080. Its totient is φ = 20140036560.

The previous prime is 42521606419. The next prime is 42521606443. The reversal of 42521606434 is 43460612524.

42521606434 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 = 42521606393 and 42521606402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453564 + ... + 539224.

It is an arithmetic number, because the mean of its divisors is an integer number (4196581380).

Almost surely, 2^42521606434 is an apocalyptic number.

42521606434 is a deficient number, since it is larger than the sum of its proper divisors (24623695646).

42521606434 is a wasteful number, since it uses less digits than its factorization.

42521606434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98745.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 42521606434 in words is "forty-two billion, five hundred twenty-one million, six hundred six thousand, four hundred thirty-four".