14991543943 has 2 divisors, whose sum is σ = 14991543944. Its totient is φ = 14991543942.

The previous prime is 14991543899. The next prime is 14991543967. The reversal of 14991543943 is 34934519941.

It is a strong prime.

It is an emirp because it is prime and its reverse (34934519941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14991543943 - 2¹⁷ = 14991412871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14991543643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7495771971 + 7495771972.

It is an arithmetic number, because the mean of its divisors is an integer number (7495771972).

Almost surely, 2^14991543943 is an apocalyptic number.

14991543943 is a deficient number, since it is larger than the sum of its proper divisors (1).

14991543943 is an equidigital number, since it uses as much as digits as its factorization.

14991543943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 52.

The spelling of 14991543943 in words is "fourteen billion, nine hundred ninety-one million, five hundred forty-three thousand, nine hundred forty-three".