42361421824 has 84 divisors (see below), whose sum is σ = 86067077040. Its totient is φ = 20845690880.

The previous prime is 42361421819. The next prime is 42361421867. The reversal of 42361421824 is 42812416324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74448612 + ... + 74449180.

It is an arithmetic number, because the mean of its divisors is an integer number (1024608060).

Almost surely, 2^42361421824 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 42361421824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43033538520).

42361421824 is an abundant number, since it is smaller than the sum of its proper divisors (43705655216).

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

42361421824 is an frugal number, since it uses more digits than its factorization.

42361421824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 642 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The spelling of 42361421824 in words is "forty-two billion, three hundred sixty-one million, four hundred twenty-one thousand, eight hundred twenty-four".