11726172543 has 8 divisors (see below), whose sum is σ = 15636197808. Its totient is φ = 7816797824.

The previous prime is 11726172527. The next prime is 11726172553. The reversal of 11726172543 is 34527162711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11726172543 - 2⁴ = 11726172527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11726172553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118896 + ... + 193877.

It is an arithmetic number, because the mean of its divisors is an integer number (1954524726).

Almost surely, 2^11726172543 is an apocalyptic number.

11726172543 is a deficient number, since it is larger than the sum of its proper divisors (3910025265).

11726172543 is a wasteful number, since it uses less digits than its factorization.

11726172543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325273.

The product of its digits is 70560, while the sum is 39.

The spelling of 11726172543 in words is "eleven billion, seven hundred twenty-six million, one hundred seventy-two thousand, five hundred forty-three".