42003606361 has 4 divisors (see below), whose sum is σ = 42046865424. Its totient is φ = 41960347300.

The previous prime is 42003606347. The next prime is 42003606389. The reversal of 42003606361 is 16360630024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42003606361 - 2¹⁷ = 42003475289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42003606331) 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 3 ways as a sum of consecutive naturals, for example, 21628075 + ... + 21630016.

It is an arithmetic number, because the mean of its divisors is an integer number (10511716356).

Almost surely, 2^42003606361 is an apocalyptic number.

It is an amenable number.

42003606361 is a deficient number, since it is larger than the sum of its proper divisors (43259063).

42003606361 is an equidigital number, since it uses as much as digits as its factorization.

42003606361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43259062.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 42003606361 in words is "forty-two billion, three million, six hundred six thousand, three hundred sixty-one".