605642851 has 16 divisors (see below), whose sum is σ = 672150528. Its totient is φ = 541094400.

The previous prime is 605642839. The next prime is 605642909. The reversal of 605642851 is 158246506.

It is a de Polignac number, because none of the positive numbers 2^k-605642851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 605642851.

It is not an unprimeable number, because it can be changed into a prime (605642251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285571 + ... + 287683.

It is an arithmetic number, because the mean of its divisors is an integer number (42009408).

Almost surely, 2^605642851 is an apocalyptic number.

605642851 is a deficient number, since it is larger than the sum of its proper divisors (66507677).

605642851 is a wasteful number, since it uses less digits than its factorization.

605642851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 605642851 is about 24609.8120878645. The cubic root of 605642851 is about 846.0685109210.

The spelling of 605642851 in words is "six hundred five million, six hundred forty-two thousand, eight hundred fifty-one".