11544518319 has 4 divisors (see below), whose sum is σ = 15392691096. Its totient is φ = 7696345544.

The previous prime is 11544518311. The next prime is 11544518383. The reversal of 11544518319 is 91381544511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91381544511 = 3 ⋅30460514837.

It is a cyclic number.

It is not a de Polignac number, because 11544518319 - 2³ = 11544518311 is a prime.

It is a super-2 number, since 2×11544518319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11544518311) 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, 1924086384 + ... + 1924086389.

It is an arithmetic number, because the mean of its divisors is an integer number (3848172774).

Almost surely, 2^11544518319 is an apocalyptic number.

11544518319 is a deficient number, since it is larger than the sum of its proper divisors (3848172777).

11544518319 is an equidigital number, since it uses as much as digits as its factorization.

11544518319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3848172776.

The product of its digits is 86400, while the sum is 42.

The spelling of 11544518319 in words is "eleven billion, five hundred forty-four million, five hundred eighteen thousand, three hundred nineteen".