14944225981 has 2 divisors, whose sum is σ = 14944225982. Its totient is φ = 14944225980.

The previous prime is 14944225979. The next prime is 14944225993. The reversal of 14944225981 is 18952244941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13830936025 + 1113289956 = 117605^2 + 33366^2 .

It is a cyclic number.

It is not a de Polignac number, because 14944225981 - 2¹ = 14944225979 is a prime.

It is a super-2 number, since 2×14944225981² (a number of 21 digits) contains 22 as substring.

Together with 14944225979, 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 (14944225081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7472112990 + 7472112991.

It is an arithmetic number, because the mean of its divisors is an integer number (7472112991).

Almost surely, 2^14944225981 is an apocalyptic number.

It is an amenable number.

14944225981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14944225981 is an equidigital number, since it uses as much as digits as its factorization.

14944225981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The spelling of 14944225981 in words is "fourteen billion, nine hundred forty-four million, two hundred twenty-five thousand, nine hundred eighty-one".