2745660668 has 12 divisors (see below), whose sum is σ = 4807484640. Its totient is φ = 1372093632.

The previous prime is 2745660661. The next prime is 2745660751. The reversal of 2745660668 is 8660665472.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745660661) 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, 175748 + ... + 190731.

It is an arithmetic number, because the mean of its divisors is an integer number (400623720).

Almost surely, 2^2745660668 is an apocalyptic number.

It is an amenable number.

2745660668 is a deficient number, since it is larger than the sum of its proper divisors (2061823972).

2745660668 is a wasteful number, since it uses less digits than its factorization.

2745660668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368356 (or 368354 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The square root of 2745660668 is about 52399.0521670001. The cubic root of 2745660668 is about 1400.2823695749.

The spelling of 2745660668 in words is "two billion, seven hundred forty-five million, six hundred sixty thousand, six hundred sixty-eight".