42420601205 has 8 divisors (see below), whose sum is σ = 50912371800. Its totient is φ = 33931380736.

The previous prime is 42420601189. The next prime is 42420601213. The reversal of 42420601205 is 50210602424.

It can be written as a sum of positive squares in 4 ways, for example, as 8012577169 + 34408024036 = 89513^2 + 185494^2 .

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 42420601205 - 2⁴ = 42420601189 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 600740 + ... + 667629.

It is an arithmetic number, because the mean of its divisors is an integer number (6364046475).

Almost surely, 2^42420601205 is an apocalyptic number.

It is an amenable number.

42420601205 is a deficient number, since it is larger than the sum of its proper divisors (8491770595).

42420601205 is a wasteful number, since it uses less digits than its factorization.

42420601205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275063.

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 42420601205 in words is "forty-two billion, four hundred twenty million, six hundred one thousand, two hundred five".