28243466434229 has 2 divisors, whose sum is σ = 28243466434230. Its totient is φ = 28243466434228.

The previous prime is 28243466434207. The next prime is 28243466434273. The reversal of 28243466434229 is 92243466434282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14499356071204 + 13744110363025 = 3807802^2 + 3707305^2 .

It is a cyclic number.

It is not a de Polignac number, because 28243466434229 - 2¹² = 28243466430133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28243466734229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14121733217114 + 14121733217115.

It is an arithmetic number, because the mean of its divisors is an integer number (14121733217115).

Almost surely, 2^{28243466434229} is an apocalyptic number.

It is an amenable number.

28243466434229 is a deficient number, since it is larger than the sum of its proper divisors (1).

28243466434229 is an equidigital number, since it uses as much as digits as its factorization.

28243466434229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95551488, while the sum is 59.

The spelling of 28243466434229 in words is "twenty-eight trillion, two hundred forty-three billion, four hundred sixty-six million, four hundred thirty-four thousand, two hundred twenty-nine".