42616281205 has 4 divisors (see below), whose sum is σ = 51139537452. Its totient is φ = 34093024960.

The previous prime is 42616281199. The next prime is 42616281229. The reversal of 42616281205 is 50218261624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15900705604 + 26715575601 = 126098^2 + 163449^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42616281205 is a prime.

It is a super-2 number, since 2×42616281205² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 4261628116 + ... + 4261628125.

It is an arithmetic number, because the mean of its divisors is an integer number (12784884363).

Almost surely, 2^42616281205 is an apocalyptic number.

It is an amenable number.

42616281205 is a deficient number, since it is larger than the sum of its proper divisors (8523256247).

42616281205 is an equidigital number, since it uses as much as digits as its factorization.

42616281205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523256246.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 42616281205 in words is "forty-two billion, six hundred sixteen million, two hundred eighty-one thousand, two hundred five".