14721784249 has 2 divisors, whose sum is σ = 14721784250. Its totient is φ = 14721784248.

The previous prime is 14721784213. The next prime is 14721784261. The reversal of 14721784249 is 94248712741.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13699063849 + 1022720400 = 117043^2 + 31980^2 .

It is a cyclic number.

It is not a de Polignac number, because 14721784249 - 2¹³ = 14721776057 is a prime.

It is not a weakly prime, because it can be changed into another prime (14721784289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7360892124 + 7360892125.

It is an arithmetic number, because the mean of its divisors is an integer number (7360892125).

Almost surely, 2^14721784249 is an apocalyptic number.

It is an amenable number.

14721784249 is a deficient number, since it is larger than the sum of its proper divisors (1).

14721784249 is an equidigital number, since it uses as much as digits as its factorization.

14721784249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 49.

The spelling of 14721784249 in words is "fourteen billion, seven hundred twenty-one million, seven hundred eighty-four thousand, two hundred forty-nine".