11543540747 has 4 divisors (see below), whose sum is σ = 11739194040. Its totient is φ = 11347887456.

The previous prime is 11543540717. The next prime is 11543540777. The reversal of 11543540747 is 74704534511.

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

It is an interprime number because it is at equal distance from previous prime (11543540717) and next prime (11543540777).

It is a cyclic number.

It is not a de Polignac number, because 11543540747 - 2¹⁰ = 11543539723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11543540717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97826558 + ... + 97826675.

It is an arithmetic number, because the mean of its divisors is an integer number (2934798510).

Almost surely, 2^11543540747 is an apocalyptic number.

11543540747 is a deficient number, since it is larger than the sum of its proper divisors (195653293).

11543540747 is an equidigital number, since it uses as much as digits as its factorization.

11543540747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195653292.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 11543540747 in words is "eleven billion, five hundred forty-three million, five hundred forty thousand, seven hundred forty-seven".