11388816711 has 12 divisors (see below), whose sum is σ = 16472965288. Its totient is φ = 7582181904.

The previous prime is 11388816671. The next prime is 11388816731. The reversal of 11388816711 is 11761888311.

It is a happy number.

It is not a de Polignac number, because 11388816711 - 2⁷ = 11388816583 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 (11388816731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 856585 + ... + 869778.

Almost surely, 2^11388816711 is an apocalyptic number.

11388816711 is a deficient number, since it is larger than the sum of its proper divisors (5084148577).

11388816711 is a wasteful number, since it uses less digits than its factorization.

11388816711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727102 (or 1727099 counting only the distinct ones).

The product of its digits is 64512, while the sum is 45.

The spelling of 11388816711 in words is "eleven billion, three hundred eighty-eight million, eight hundred sixteen thousand, seven hundred eleven".