13816893749 has 2 divisors, whose sum is σ = 13816893750. Its totient is φ = 13816893748.

The previous prime is 13816893659. The next prime is 13816893767. The reversal of 13816893749 is 94739861831.

13816893749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11627308900 + 2189584849 = 107830^2 + 46793^2 .

It is a cyclic number.

It is not a de Polignac number, because 13816893749 - 2¹⁶ = 13816828213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13816893149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6908446874 + 6908446875.

It is an arithmetic number, because the mean of its divisors is an integer number (6908446875).

Almost surely, 2^13816893749 is an apocalyptic number.

It is an amenable number.

13816893749 is a deficient number, since it is larger than the sum of its proper divisors (1).

13816893749 is an equidigital number, since it uses as much as digits as its factorization.

13816893749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 59.

The spelling of 13816893749 in words is "thirteen billion, eight hundred sixteen million, eight hundred ninety-three thousand, seven hundred forty-nine".