28243466434273 has 2 divisors, whose sum is σ = 28243466434274. Its totient is φ = 28243466434272.

The previous prime is 28243466434229. The next prime is 28243466434283. The reversal of 28243466434273 is 37243466434282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22041259715344 + 6202206718929 = 4694812^2 + 2490423^2 .

It is a cyclic number.

It is not a de Polignac number, because 28243466434273 - 2⁹ = 28243466433761 is a prime.

It is a super-3 number, since 3×28243466434273³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (28243466434283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14121733217136 + 14121733217137.

It is an arithmetic number, because the mean of its divisors is an integer number (14121733217137).

Almost surely, 2^{28243466434273} is an apocalyptic number.

It is an amenable number.

28243466434273 is a deficient number, since it is larger than the sum of its proper divisors (1).

28243466434273 is an equidigital number, since it uses as much as digits as its factorization.

28243466434273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111476736, while the sum is 58.

Subtracting 28243466434273 from its reverse (37243466434282), we obtain a palindrome (9000000000009).

The spelling of 28243466434273 in words is "twenty-eight trillion, two hundred forty-three billion, four hundred sixty-six million, four hundred thirty-four thousand, two hundred seventy-three".