42004116505 has 32 divisors (see below), whose sum is σ = 56684404224. Its totient is φ = 29647766016.

The previous prime is 42004116493. The next prime is 42004116509. The reversal of 42004116505 is 50561140024.

It is a cyclic number.

It is not a de Polignac number, because 42004116505 - 2⁷ = 42004116377 is a prime.

It is a super-2 number, since 2×42004116505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42004116509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2153557 + ... + 2172973.

It is an arithmetic number, because the mean of its divisors is an integer number (1771387632).

Almost surely, 2^42004116505 is an apocalyptic number.

It is an amenable number.

42004116505 is a deficient number, since it is larger than the sum of its proper divisors (14680287719).

42004116505 is a wasteful number, since it uses less digits than its factorization.

42004116505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20905.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 42004116505 its reverse (50561140024), we get a palindrome (92565256529).

The spelling of 42004116505 in words is "forty-two billion, four million, one hundred sixteen thousand, five hundred five".