11514518749 has 2 divisors, whose sum is σ = 11514518750. Its totient is φ = 11514518748.

The previous prime is 11514518723. The next prime is 11514518839. The reversal of 11514518749 is 94781541511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9463787524 + 2050731225 = 97282^2 + 45285^2 .

It is a cyclic number.

It is not a de Polignac number, because 11514518749 - 2¹¹ = 11514516701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11514518699 and 11514518708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11514519749) 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 as a sum of consecutive naturals, namely, 5757259374 + 5757259375.

It is an arithmetic number, because the mean of its divisors is an integer number (5757259375).

Almost surely, 2^11514518749 is an apocalyptic number.

It is an amenable number.

11514518749 is a deficient number, since it is larger than the sum of its proper divisors (1).

11514518749 is an equidigital number, since it uses as much as digits as its factorization.

11514518749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 46.

The spelling of 11514518749 in words is "eleven billion, five hundred fourteen million, five hundred eighteen thousand, seven hundred forty-nine".