42173405384 has 64 divisors (see below), whose sum is σ = 92176444800. Its totient is φ = 17876505600.

The previous prime is 42173405371. The next prime is 42173405441. The reversal of 42173405384 is 48350437124.

It is a super-2 number, since 2×42173405384² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33749 + ... + 292379.

It is an arithmetic number, because the mean of its divisors is an integer number (1440256950).

Almost surely, 2^42173405384 is an apocalyptic number.

42173405384 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42173405384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46088222400).

42173405384 is an abundant number, since it is smaller than the sum of its proper divisors (50003039416).

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

42173405384 is a wasteful number, since it uses less digits than its factorization.

42173405384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258774 (or 258770 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The spelling of 42173405384 in words is "forty-two billion, one hundred seventy-three million, four hundred five thousand, three hundred eighty-four".