42006120545 has 8 divisors (see below), whose sum is σ = 50408445696. Its totient is φ = 33604162416.

The previous prime is 42006120523. The next prime is 42006120553. The reversal of 42006120545 is 54502160024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42006120545 - 2¹⁰ = 42006119521 is a prime.

It is a super-3 number, since 3×42006120545³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

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, 389954 + ... + 485876.

It is an arithmetic number, because the mean of its divisors is an integer number (6301055712).

Almost surely, 2^42006120545 is an apocalyptic number.

It is an amenable number.

42006120545 is a deficient number, since it is larger than the sum of its proper divisors (8402325151).

42006120545 is an equidigital number, since it uses as much as digits as its factorization.

42006120545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183511.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 42006120545 its reverse (54502160024), we get a palindrome (96508280569).

The spelling of 42006120545 in words is "forty-two billion, six million, one hundred twenty thousand, five hundred forty-five".