11375717809 has 4 divisors (see below), whose sum is σ = 11742676480. Its totient is φ = 11008759140.

The previous prime is 11375717761. The next prime is 11375717813. The reversal of 11375717809 is 90871757311.

It is a happy number.

11375717809 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11375717809 - 2⁷ = 11375717681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11375717879) 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, 183479289 + ... + 183479350.

It is an arithmetic number, because the mean of its divisors is an integer number (2935669120).

Almost surely, 2^11375717809 is an apocalyptic number.

It is an amenable number.

11375717809 is a deficient number, since it is larger than the sum of its proper divisors (366958671).

11375717809 is an equidigital number, since it uses as much as digits as its factorization.

11375717809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366958670.

The product of its (nonzero) digits is 370440, while the sum is 49.

The spelling of 11375717809 in words is "eleven billion, three hundred seventy-five million, seven hundred seventeen thousand, eight hundred nine".