16423102242689 has 2 divisors, whose sum is σ = 16423102242690. Its totient is φ = 16423102242688.

The previous prime is 16423102242683. The next prime is 16423102242691. The reversal of 16423102242689 is 98624220132461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13216191326464 + 3206910916225 = 3635408^2 + 1790785^2 .

It is a cyclic number.

It is not a de Polignac number, because 16423102242689 - 2³⁶ = 16354382765953 is a prime.

It is a super-2 number, since 2×16423102242689² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 16423102242691, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16423102242683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8211551121344 + 8211551121345.

It is an arithmetic number, because the mean of its divisors is an integer number (8211551121345).

Almost surely, 2^{16423102242689} is an apocalyptic number.

It is an amenable number.

16423102242689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16423102242689 is an equidigital number, since it uses as much as digits as its factorization.

16423102242689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 16423102242689 in words is "sixteen trillion, four hundred twenty-three billion, one hundred two million, two hundred forty-two thousand, six hundred eighty-nine".