11744940543 has 16 divisors (see below), whose sum is σ = 17903235840. Its totient is φ = 6709075776.

The previous prime is 11744940533. The next prime is 11744940583. The reversal of 11744940543 is 34504944711.

It is a happy number.

It is not a de Polignac number, because 11744940543 - 2⁵ = 11744940511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11744940495 and 11744940504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11744940523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33430 + ... + 156867.

It is an arithmetic number, because the mean of its divisors is an integer number (1118952240).

Almost surely, 2^11744940543 is an apocalyptic number.

11744940543 is a deficient number, since it is larger than the sum of its proper divisors (6158295297).

11744940543 is a wasteful number, since it uses less digits than its factorization.

11744940543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193246.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 11744940543 in words is "eleven billion, seven hundred forty-four million, nine hundred forty thousand, five hundred forty-three".