11543434967 has 4 divisors (see below), whose sum is σ = 11549414856. Its totient is φ = 11537455080.

The previous prime is 11543434963. The next prime is 11543434999. The reversal of 11543434967 is 76943434511.

11543434967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11543434967 - 2² = 11543434963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543434963) 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 in 3 ways as a sum of consecutive naturals, for example, 2987048 + ... + 2990909.

It is an arithmetic number, because the mean of its divisors is an integer number (2887353714).

Almost surely, 2^11543434967 is an apocalyptic number.

11543434967 is a deficient number, since it is larger than the sum of its proper divisors (5979889).

11543434967 is an equidigital number, since it uses as much as digits as its factorization.

11543434967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979888.

The product of its digits is 1088640, while the sum is 47.

The spelling of 11543434967 in words is "eleven billion, five hundred forty-three million, four hundred thirty-four thousand, nine hundred sixty-seven".