2788610281 has 2 divisors, whose sum is σ = 2788610282. Its totient is φ = 2788610280.

The previous prime is 2788610269. The next prime is 2788610323. The reversal of 2788610281 is 1820168872.

2788610281 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., 2528078400 + 260531881 = 50280^2 + 16141^2 .

It is a cyclic number.

It is not a de Polignac number, because 2788610281 - 2¹¹ = 2788608233 is a prime.

It is a super-2 number, since 2×2788610281² = 15552694598597797922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2788610261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394305140 + 1394305141.

It is an arithmetic number, because the mean of its divisors is an integer number (1394305141).

Almost surely, 2^2788610281 is an apocalyptic number.

It is an amenable number.

2788610281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788610281 is an equidigital number, since it uses as much as digits as its factorization.

2788610281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 2788610281 is about 52807.2938238649. The cubic root of 2788610281 is about 1407.5460360773.

The spelling of 2788610281 in words is "two billion, seven hundred eighty-eight million, six hundred ten thousand, two hundred eighty-one".