14344039981 has 2 divisors, whose sum is σ = 14344039982. Its totient is φ = 14344039980.

The previous prime is 14344039979. The next prime is 14344040041. The reversal of 14344039981 is 18993044341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9175724100 + 5168315881 = 95790^2 + 71891^2 .

It is a cyclic number.

It is not a de Polignac number, because 14344039981 - 2¹ = 14344039979 is a prime.

It is a super-2 number, since 2×14344039981² (a number of 21 digits) contains 22 as substring.

Together with 14344039979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14344039961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7172019990 + 7172019991.

It is an arithmetic number, because the mean of its divisors is an integer number (7172019991).

Almost surely, 2^14344039981 is an apocalyptic number.

It is an amenable number.

14344039981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14344039981 is an equidigital number, since it uses as much as digits as its factorization.

14344039981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 14344039981 in words is "fourteen billion, three hundred forty-four million, thirty-nine thousand, nine hundred eighty-one".