14427069581 has 2 divisors, whose sum is σ = 14427069582. Its totient is φ = 14427069580.

The previous prime is 14427069551. The next prime is 14427069623. The reversal of 14427069581 is 18596072441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7456322500 + 6970747081 = 86350^2 + 83491^2 .

It is an emirp because it is prime and its reverse (18596072441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14427069581 - 2²² = 14422875277 is a prime.

It is a super-2 number, since 2×14427069581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14427069541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7213534790 + 7213534791.

It is an arithmetic number, because the mean of its divisors is an integer number (7213534791).

Almost surely, 2^14427069581 is an apocalyptic number.

It is an amenable number.

14427069581 is a deficient number, since it is larger than the sum of its proper divisors (1).

14427069581 is an equidigital number, since it uses as much as digits as its factorization.

14427069581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 14427069581 in words is "fourteen billion, four hundred twenty-seven million, sixty-nine thousand, five hundred eighty-one".