11775337543 has 4 divisors (see below), whose sum is σ = 11781265720. Its totient is φ = 11769409368.

The previous prime is 11775337529. The next prime is 11775337573. The reversal of 11775337543 is 34573357711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34573357711 = 251 ⋅137742461.

It is a cyclic number.

It is not a de Polignac number, because 11775337543 - 2¹³ = 11775329351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11775337493 and 11775337502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11775337523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2961108 + ... + 2965081.

It is an arithmetic number, because the mean of its divisors is an integer number (2945316430).

Almost surely, 2^11775337543 is an apocalyptic number.

11775337543 is a deficient number, since it is larger than the sum of its proper divisors (5928177).

11775337543 is an equidigital number, since it uses as much as digits as its factorization.

11775337543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928176.

The product of its digits is 926100, while the sum is 46.

The spelling of 11775337543 in words is "eleven billion, seven hundred seventy-five million, three hundred thirty-seven thousand, five hundred forty-three".