11293968209 has 4 divisors (see below), whose sum is σ = 11295092916. Its totient is φ = 11292843504.

The previous prime is 11293968197. The next prime is 11293968227. The reversal of 11293968209 is 90286939211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9422973184 + 1870995025 = 97072^2 + 43255^2 .

It is a cyclic number.

It is not a de Polignac number, because 11293968209 - 2¹⁶ = 11293902673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11293968229) 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, 547154 + ... + 567419.

It is an arithmetic number, because the mean of its divisors is an integer number (2823773229).

Almost surely, 2^11293968209 is an apocalyptic number.

It is an amenable number.

11293968209 is a deficient number, since it is larger than the sum of its proper divisors (1124707).

11293968209 is a wasteful number, since it uses less digits than its factorization.

11293968209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124706.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 11293968209 in words is "eleven billion, two hundred ninety-three million, nine hundred sixty-eight thousand, two hundred nine".