11643174943 has 2 divisors, whose sum is σ = 11643174944. Its totient is φ = 11643174942.

The previous prime is 11643174941. The next prime is 11643174947. The reversal of 11643174943 is 34947134611.

It is a weak prime.

It is an emirp because it is prime and its reverse (34947134611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11643174943 - 2¹ = 11643174941 is a prime.

Together with 11643174941, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11643174943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11643174941) 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, 5821587471 + 5821587472.

It is an arithmetic number, because the mean of its divisors is an integer number (5821587472).

Almost surely, 2^11643174943 is an apocalyptic number.

11643174943 is a deficient number, since it is larger than the sum of its proper divisors (1).

11643174943 is an equidigital number, since it uses as much as digits as its factorization.

11643174943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 43.

The spelling of 11643174943 in words is "eleven billion, six hundred forty-three million, one hundred seventy-four thousand, nine hundred forty-three".