13894054939 has 2 divisors, whose sum is σ = 13894054940. Its totient is φ = 13894054938.

The previous prime is 13894054897. The next prime is 13894054943. The reversal of 13894054939 is 93945049831.

It is a happy number.

13894054939 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13894054939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13894054939.

It is not a weakly prime, because it can be changed into another prime (13894054739) 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, 6947027469 + 6947027470.

It is an arithmetic number, because the mean of its divisors is an integer number (6947027470).

Almost surely, 2^13894054939 is an apocalyptic number.

13894054939 is a deficient number, since it is larger than the sum of its proper divisors (1).

13894054939 is an equidigital number, since it uses as much as digits as its factorization.

13894054939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 13894054939 in words is "thirteen billion, eight hundred ninety-four million, fifty-four thousand, nine hundred thirty-nine".