11594778659 has 4 divisors (see below), whose sum is σ = 11594994600. Its totient is φ = 11594562720.

The previous prime is 11594778647. The next prime is 11594778661. The reversal of 11594778659 is 95687749511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11594778659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11594778059) 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, 42104 + ... + 157994.

It is an arithmetic number, because the mean of its divisors is an integer number (2898748650).

Almost surely, 2^11594778659 is an apocalyptic number.

11594778659 is a deficient number, since it is larger than the sum of its proper divisors (215941).

11594778659 is a wasteful number, since it uses less digits than its factorization.

11594778659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215940.

The product of its digits is 19051200, while the sum is 62.

The spelling of 11594778659 in words is "eleven billion, five hundred ninety-four million, seven hundred seventy-eight thousand, six hundred fifty-nine".