2668604573 has 4 divisors (see below), whose sum is σ = 2708434560. Its totient is φ = 2628774588.

The previous prime is 2668604557. The next prime is 2668604579. The reversal of 2668604573 is 3754068662.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3754068662 = 2 ⋅1877034331.

It is a cyclic number.

It is not a de Polignac number, because 2668604573 - 2⁴ = 2668604557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668604579) 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, 19914893 + ... + 19915026.

It is an arithmetic number, because the mean of its divisors is an integer number (677108640).

Almost surely, 2^2668604573 is an apocalyptic number.

It is an amenable number.

2668604573 is a deficient number, since it is larger than the sum of its proper divisors (39829987).

2668604573 is an equidigital number, since it uses as much as digits as its factorization.

2668604573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39829986.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 2668604573 is about 51658.5382390946. The cubic root of 2668604573 is about 1387.0583846633.

The spelling of 2668604573 in words is "two billion, six hundred sixty-eight million, six hundred four thousand, five hundred seventy-three".