11518765711 has 2 divisors, whose sum is σ = 11518765712. Its totient is φ = 11518765710.

The previous prime is 11518765691. The next prime is 11518765729. The reversal of 11518765711 is 11756781511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11518765711 - 2⁹ = 11518765199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11518765771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5759382855 + 5759382856.

It is an arithmetic number, because the mean of its divisors is an integer number (5759382856).

Almost surely, 2^11518765711 is an apocalyptic number.

11518765711 is a deficient number, since it is larger than the sum of its proper divisors (1).

11518765711 is an equidigital number, since it uses as much as digits as its factorization.

11518765711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 43.

The spelling of 11518765711 in words is "eleven billion, five hundred eighteen million, seven hundred sixty-five thousand, seven hundred eleven".