11568588749 has 2 divisors, whose sum is σ = 11568588750. Its totient is φ = 11568588748.

The previous prime is 11568588643. The next prime is 11568588769. The reversal of 11568588749 is 94788586511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6957228100 + 4611360649 = 83410^2 + 67907^2 .

It is an emirp because it is prime and its reverse (94788586511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11568588749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11568588691 and 11568588700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11568588769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5784294374 + 5784294375.

It is an arithmetic number, because the mean of its divisors is an integer number (5784294375).

Almost surely, 2^11568588749 is an apocalyptic number.

It is an amenable number.

11568588749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11568588749 is an equidigital number, since it uses as much as digits as its factorization.

11568588749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 62.

The spelling of 11568588749 in words is "eleven billion, five hundred sixty-eight million, five hundred eighty-eight thousand, seven hundred forty-nine".