4028769149 has 2 divisors, whose sum is σ = 4028769150. Its totient is φ = 4028769148.

The previous prime is 4028769127. The next prime is 4028769229. The reversal of 4028769149 is 9419678204.

4028769149 is digitally balanced in base 3, 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., 2031304900 + 1997464249 = 45070^2 + 44693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4028769149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4028769097 and 4028769106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4028769109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2014384574 + 2014384575.

It is an arithmetic number, because the mean of its divisors is an integer number (2014384575).

Almost surely, 2^4028769149 is an apocalyptic number.

It is an amenable number.

4028769149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4028769149 is an equidigital number, since it uses as much as digits as its factorization.

4028769149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 4028769149 is about 63472.5858067875. The cubic root of 4028769149 is about 1591.1976458481.

The spelling of 4028769149 in words is "four billion, twenty-eight million, seven hundred sixty-nine thousand, one hundred forty-nine".