14427857669 has 2 divisors, whose sum is σ = 14427857670. Its totient is φ = 14427857668.

The previous prime is 14427857623. The next prime is 14427857671. The reversal of 14427857669 is 96675872441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7844644900 + 6583212769 = 88570^2 + 81137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14427857669 is a prime.

It is a super-2 number, since 2×14427857669² (a number of 21 digits) contains 22 as substring.

Together with 14427857671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14427857569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7213928834 + 7213928835.

It is an arithmetic number, because the mean of its divisors is an integer number (7213928835).

Almost surely, 2^14427857669 is an apocalyptic number.

It is an amenable number.

14427857669 is a deficient number, since it is larger than the sum of its proper divisors (1).

14427857669 is an equidigital number, since it uses as much as digits as its factorization.

14427857669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 59.

The spelling of 14427857669 in words is "fourteen billion, four hundred twenty-seven million, eight hundred fifty-seven thousand, six hundred sixty-nine".