11326005865 has 8 divisors (see below), whose sum is σ = 13617911880. Its totient is φ = 9043001472.

The previous prime is 11326005841. The next prime is 11326005869. The reversal of 11326005865 is 56850062311.

It can be written as a sum of positive squares in 4 ways, for example, as 3256756624 + 8069249241 = 57068^2 + 89829^2 .

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 11326005865 - 2⁷ = 11326005737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11326005869) 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, 2222604 + ... + 2227693.

It is an arithmetic number, because the mean of its divisors is an integer number (1702238985).

Almost surely, 2^11326005865 is an apocalyptic number.

It is an amenable number.

11326005865 is a deficient number, since it is larger than the sum of its proper divisors (2291906015).

11326005865 is an equidigital number, since it uses as much as digits as its factorization.

11326005865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450811.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 11326005865 in words is "eleven billion, three hundred twenty-six million, five thousand, eight hundred sixty-five".