11764331543 has 4 divisors (see below), whose sum is σ = 11824049160. Its totient is φ = 11704613928.

The previous prime is 11764331477. The next prime is 11764331591. The reversal of 11764331543 is 34513346711.

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 11764331543 - 2¹⁰ = 11764330519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11764331497 and 11764331506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11764331443) 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 in 3 ways as a sum of consecutive naturals, for example, 29858513 + ... + 29858906.

It is an arithmetic number, because the mean of its divisors is an integer number (2956012290).

Almost surely, 2^11764331543 is an apocalyptic number.

11764331543 is a deficient number, since it is larger than the sum of its proper divisors (59717617).

11764331543 is an equidigital number, since it uses as much as digits as its factorization.

11764331543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59717616.

The product of its digits is 90720, while the sum is 38.

The spelling of 11764331543 in words is "eleven billion, seven hundred sixty-four million, three hundred thirty-one thousand, five hundred forty-three".