28243662023 has 2 divisors, whose sum is σ = 28243662024. Its totient is φ = 28243662022.

The previous prime is 28243662019. The next prime is 28243662059. The reversal of 28243662023 is 32026634282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28243662023 - 2² = 28243662019 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28243662323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14121831011 + 14121831012.

It is an arithmetic number, because the mean of its divisors is an integer number (14121831012).

Almost surely, 2^28243662023 is an apocalyptic number.

28243662023 is a deficient number, since it is larger than the sum of its proper divisors (1).

28243662023 is an equidigital number, since it uses as much as digits as its factorization.

28243662023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 28243662023 in words is "twenty-eight billion, two hundred forty-three million, six hundred sixty-two thousand, twenty-three".