606728862721 has 4 divisors (see below), whose sum is σ = 612399226032. Its totient is φ = 601058499412.

The previous prime is 606728862679. The next prime is 606728862757. The reversal of 606728862721 is 127268827606.

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 606728862721 - 2¹⁷ = 606728731649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (606728862791) 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, 2835181495 + ... + 2835181708.

It is an arithmetic number, because the mean of its divisors is an integer number (153099806508).

Almost surely, 2^606728862721 is an apocalyptic number.

It is an amenable number.

606728862721 is a deficient number, since it is larger than the sum of its proper divisors (5670363311).

606728862721 is a wasteful number, since it uses less digits than its factorization.

606728862721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670363310.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 606728862721 in words is "six hundred six billion, seven hundred twenty-eight million, eight hundred sixty-two thousand, seven hundred twenty-one".