2028266787439 has 2 divisors, whose sum is σ = 2028266787440. Its totient is φ = 2028266787438.

The previous prime is 2028266787413. The next prime is 2028266787461. The reversal of 2028266787439 is 9347876628202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028266787439 - 2¹⁹ = 2028266263151 is a prime.

It is a super-2 number, since 2×2028266787439² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028266787739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014133393719 + 1014133393720.

It is an arithmetic number, because the mean of its divisors is an integer number (1014133393720).

Almost surely, 2^{2028266787439} is an apocalyptic number.

2028266787439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028266787439 is an equidigital number, since it uses as much as digits as its factorization.

2028266787439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97542144, while the sum is 64.

The spelling of 2028266787439 in words is "two trillion, twenty-eight billion, two hundred sixty-six million, seven hundred eighty-seven thousand, four hundred thirty-nine".