28223066629 has 2 divisors, whose sum is σ = 28223066630. Its totient is φ = 28223066628.

The previous prime is 28223066581. The next prime is 28223066657. The reversal of 28223066629 is 92666032282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25187277025 + 3035789604 = 158705^2 + 55098^2 .

It is a cyclic number.

It is not a de Polignac number, because 28223066629 - 2²³ = 28214678021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28223066689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14111533314 + 14111533315.

It is an arithmetic number, because the mean of its divisors is an integer number (14111533315).

Almost surely, 2^28223066629 is an apocalyptic number.

It is an amenable number.

28223066629 is a deficient number, since it is larger than the sum of its proper divisors (1).

28223066629 is an equidigital number, since it uses as much as digits as its factorization.

28223066629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 28223066629 in words is "twenty-eight billion, two hundred twenty-three million, sixty-six thousand, six hundred twenty-nine".