11725208089 has 27 divisors (see below), whose sum is σ = 14122006101. Its totient is φ = 9706488120.

The previous prime is 11725208081. The next prime is 11725208101. The reversal of 11725208089 is 98080252711.

It is a happy number.

The square root of 11725208089 is 108283.

It is a perfect power (a square), and thus also a powerful number.

11725208089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11725208089 - 2³ = 11725208081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11725208081) 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 26 ways as a sum of consecutive naturals, for example, 23497162 + ... + 23497660.

It is an arithmetic number, because the mean of its divisors is an integer number (523037263).

Almost surely, 2^11725208089 is an apocalyptic number.

11725208089 is the 108283-rd square number.

11725208089 is the 54142-nd centered octagonal number.

It is an amenable number.

11725208089 is a deficient number, since it is larger than the sum of its proper divisors (2396798012).

11725208089 is an frugal number, since it uses more digits than its factorization.

11725208089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 11725208089 in words is "eleven billion, seven hundred twenty-five million, two hundred eight thousand, eighty-nine".