11717178793 has 4 divisors (see below), whose sum is σ = 11767467348. Its totient is φ = 11666890240.

The previous prime is 11717178769. The next prime is 11717178817. The reversal of 11717178793 is 39787171711.

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

It is an interprime number because it is at equal distance from previous prime (11717178769) and next prime (11717178817).

It can be written as a sum of positive squares in 2 ways, for example, as 1513754649 + 10203424144 = 38907^2 + 101012^2 .

It is a cyclic number.

It is not a de Polignac number, because 11717178793 - 2⁹ = 11717178281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11717178793.

It is not an unprimeable number, because it can be changed into a prime (11717170793) 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, 25143928 + ... + 25144393.

It is an arithmetic number, because the mean of its divisors is an integer number (2941866837).

Almost surely, 2^11717178793 is an apocalyptic number.

It is an amenable number.

11717178793 is a deficient number, since it is larger than the sum of its proper divisors (50288555).

11717178793 is an equidigital number, since it uses as much as digits as its factorization.

11717178793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50288554.

The product of its digits is 518616, while the sum is 52.

The spelling of 11717178793 in words is "eleven billion, seven hundred seventeen million, one hundred seventy-eight thousand, seven hundred ninety-three".