42404536423552 has 64 divisors (see below), whose sum is σ = 85356784244160. Its totient is φ = 20981941171200.

The previous prime is 42404536423511. The next prime is 42404536423609. The reversal of 42404536423552 is 25532463540424.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 42404536423496 and 42404536423505.

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, 18021658 + ... + 20238310.

It is an arithmetic number, because the mean of its divisors is an integer number (1333699753815).

Almost surely, 2^{42404536423552} 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 42404536423552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42678392122080).

42404536423552 is an abundant number, since it is smaller than the sum of its proper divisors (42952247820608).

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

42404536423552 is a wasteful number, since it uses less digits than its factorization.

42404536423552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218221 (or 2218209 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 49.

Adding to 42404536423552 its reverse (25532463540424), we get a palindrome (67936999963976).

The spelling of 42404536423552 in words is "forty-two trillion, four hundred four billion, five hundred thirty-six million, four hundred twenty-three thousand, five hundred fifty-two".