11813324809 has 8 divisors (see below), whose sum is σ = 13878591552. Its totient is φ = 9913279440.

The previous prime is 11813324807. The next prime is 11813324819. The reversal of 11813324809 is 90842331811.

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 11813324809 - 2¹ = 11813324807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11813324807) 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, 41305189 + ... + 41305474.

It is an arithmetic number, because the mean of its divisors is an integer number (1734823944).

Almost surely, 2^11813324809 is an apocalyptic number.

It is an amenable number.

11813324809 is a deficient number, since it is larger than the sum of its proper divisors (2065266743).

11813324809 is a wasteful number, since it uses less digits than its factorization.

11813324809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82610687.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 11813324809 in words is "eleven billion, eight hundred thirteen million, three hundred twenty-four thousand, eight hundred nine".