11409575329 has 4 divisors (see below), whose sum is σ = 11547040176. Its totient is φ = 11272110484.

The previous prime is 11409575311. The next prime is 11409575341. The reversal of 11409575329 is 92357590411.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92357590411 = 34949 ⋅2642639.

It is a cyclic number.

It is not a de Polignac number, because 11409575329 - 2²⁵ = 11376020897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11409576329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68732299 + ... + 68732464.

It is an arithmetic number, because the mean of its divisors is an integer number (2886760044).

Almost surely, 2^11409575329 is an apocalyptic number.

It is an amenable number.

11409575329 is a deficient number, since it is larger than the sum of its proper divisors (137464847).

11409575329 is an equidigital number, since it uses as much as digits as its factorization.

11409575329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137464846.

The product of its (nonzero) digits is 340200, while the sum is 46.

The spelling of 11409575329 in words is "eleven billion, four hundred nine million, five hundred seventy-five thousand, three hundred twenty-nine".