13949639990863 has 2 divisors, whose sum is σ = 13949639990864. Its totient is φ = 13949639990862.

The previous prime is 13949639990773. The next prime is 13949639990917. The reversal of 13949639990863 is 36809993694931.

It is a strong prime.

It is an emirp because it is prime and its reverse (36809993694931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13949639990863 - 2³⁷ = 13812201037391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13949639990563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6974819995431 + 6974819995432.

It is an arithmetic number, because the mean of its divisors is an integer number (6974819995432).

Almost surely, 2^{13949639990863} is an apocalyptic number.

13949639990863 is a deficient number, since it is larger than the sum of its proper divisors (1).

13949639990863 is an equidigital number, since it uses as much as digits as its factorization.

13949639990863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1836660096, while the sum is 79.

The spelling of 13949639990863 in words is "thirteen trillion, nine hundred forty-nine billion, six hundred thirty-nine million, nine hundred ninety thousand, eight hundred sixty-three".