11916972711 has 24 divisors (see below), whose sum is σ = 20152283424. Its totient is φ = 6643607040.

The previous prime is 11916972703. The next prime is 11916972713. The reversal of 11916972711 is 11727961911.

11916972711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11916972711 - 2³ = 11916972703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11916972713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2304226 + ... + 2309391.

It is an arithmetic number, because the mean of its divisors is an integer number (839678476).

Almost surely, 2^11916972711 is an apocalyptic number.

11916972711 is a deficient number, since it is larger than the sum of its proper divisors (8235310713).

11916972711 is a wasteful number, since it uses less digits than its factorization.

11916972711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613671 (or 4613668 counting only the distinct ones).

The product of its digits is 47628, while the sum is 45.

The spelling of 11916972711 in words is "eleven billion, nine hundred sixteen million, nine hundred seventy-two thousand, seven hundred eleven".