11568780677 has 4 divisors (see below), whose sum is σ = 11681099040. Its totient is φ = 11456462316.

The previous prime is 11568780661. The next prime is 11568780679. The reversal of 11568780677 is 77608786511.

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: 77608786511 = 149 ⋅520864339.

It is a cyclic number.

It is not a de Polignac number, because 11568780677 - 2⁴ = 11568780661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11568780679) 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, 56159027 + ... + 56159232.

It is an arithmetic number, because the mean of its divisors is an integer number (2920274760).

Almost surely, 2^11568780677 is an apocalyptic number.

It is an amenable number.

11568780677 is a deficient number, since it is larger than the sum of its proper divisors (112318363).

11568780677 is a wasteful number, since it uses less digits than its factorization.

11568780677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112318362.

The product of its (nonzero) digits is 3951360, while the sum is 56.

The spelling of 11568780677 in words is "eleven billion, five hundred sixty-eight million, seven hundred eighty thousand, six hundred seventy-seven".