4028688480749 has 2 divisors, whose sum is σ = 4028688480750. Its totient is φ = 4028688480748.

The previous prime is 4028688480743. The next prime is 4028688480829. The reversal of 4028688480749 is 9470848868204.

4028688480749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3645178285225 + 383510195524 = 1909235^2 + 619282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4028688480749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4028688480743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014344240374 + 2014344240375.

It is an arithmetic number, because the mean of its divisors is an integer number (2014344240375).

Almost surely, 2^{4028688480749} is an apocalyptic number.

It is an amenable number.

4028688480749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4028688480749 is an equidigital number, since it uses as much as digits as its factorization.

4028688480749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 198180864, while the sum is 68.

The spelling of 4028688480749 in words is "four trillion, twenty-eight billion, six hundred eighty-eight million, four hundred eighty thousand, seven hundred forty-nine".