11705704817 has 4 divisors (see below), whose sum is σ = 11733642480. Its totient is φ = 11677767156.

The previous prime is 11705704789. The next prime is 11705704819. The reversal of 11705704817 is 71840750711.

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: 71840750711 = 151 ⋅475766561.

It is a cyclic number.

It is not a de Polignac number, because 11705704817 - 2⁸ = 11705704561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11705704819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13968203 + ... + 13969040.

It is an arithmetic number, because the mean of its divisors is an integer number (2933410620).

Almost surely, 2^11705704817 is an apocalyptic number.

It is an amenable number.

11705704817 is a deficient number, since it is larger than the sum of its proper divisors (27937663).

11705704817 is an equidigital number, since it uses as much as digits as its factorization.

11705704817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27937662.

The product of its (nonzero) digits is 54880, while the sum is 41.

The spelling of 11705704817 in words is "eleven billion, seven hundred five million, seven hundred four thousand, eight hundred seventeen".