11543671511 has 8 divisors (see below), whose sum is σ = 11823043584. Its totient is φ = 11264795640.

The previous prime is 11543671501. The next prime is 11543671523. The reversal of 11543671511 is 11517634511.

11543671511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11543671511 - 2²² = 11539477207 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 (11543671501) 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 7 ways as a sum of consecutive naturals, for example, 76745 + ... + 170226.

It is an arithmetic number, because the mean of its divisors is an integer number (1477880448).

Almost surely, 2^11543671511 is an apocalyptic number.

11543671511 is a deficient number, since it is larger than the sum of its proper divisors (279372073).

11543671511 is a wasteful number, since it uses less digits than its factorization.

11543671511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248101.

The product of its digits is 12600, while the sum is 35.

The spelling of 11543671511 in words is "eleven billion, five hundred forty-three million, six hundred seventy-one thousand, five hundred eleven".