11471105409 has 8 divisors (see below), whose sum is σ = 15297138240. Its totient is φ = 7646238096.

The previous prime is 11471105389. The next prime is 11471105531. The reversal of 11471105409 is 90450117411.

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

It is not a de Polignac number, because 11471105409 - 2⁷ = 11471105281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11471105409.

It is not an unprimeable number, because it can be changed into a prime (11471105209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268149 + ... + 307970.

It is an arithmetic number, because the mean of its divisors is an integer number (1912142280).

Almost surely, 2^11471105409 is an apocalyptic number.

It is an amenable number.

11471105409 is a deficient number, since it is larger than the sum of its proper divisors (3826032831).

11471105409 is an equidigital number, since it uses as much as digits as its factorization.

11471105409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582759.

The product of its (nonzero) digits is 5040, while the sum is 33.

The spelling of 11471105409 in words is "eleven billion, four hundred seventy-one million, one hundred five thousand, four hundred nine".