11557468723 has 4 divisors (see below), whose sum is σ = 11640616120. Its totient is φ = 11474321328.

The previous prime is 11557468673. The next prime is 11557468729. The reversal of 11557468723 is 32786475511.

11557468723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32786475511 = 4019 ⋅8157869.

It is a cyclic number.

It is not a de Polignac number, because 11557468723 - 2⁹ = 11557468211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11557468729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41573490 + ... + 41573767.

It is an arithmetic number, because the mean of its divisors is an integer number (2910154030).

Almost surely, 2^11557468723 is an apocalyptic number.

11557468723 is a deficient number, since it is larger than the sum of its proper divisors (83147397).

11557468723 is an equidigital number, since it uses as much as digits as its factorization.

11557468723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83147396.

The product of its digits is 1411200, while the sum is 49.

The spelling of 11557468723 in words is "eleven billion, five hundred fifty-seven million, four hundred sixty-eight thousand, seven hundred twenty-three".