11919384927 has 16 divisors (see below), whose sum is σ = 17662826080. Its totient is φ = 7944241536.

The previous prime is 11919384899. The next prime is 11919384937. The reversal of 11919384927 is 72948391911.

11919384927 is a `hidden beast` number, since 119 + 1 + 9 + 38 + 492 + 7 = 666.

It is not a de Polignac number, because 11919384927 - 2⁶ = 11919384863 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 (11919384937) 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 in 15 ways as a sum of consecutive naturals, for example, 56583 + ... + 164439.

It is an arithmetic number, because the mean of its divisors is an integer number (1103926630).

Almost surely, 2^11919384927 is an apocalyptic number.

11919384927 is a deficient number, since it is larger than the sum of its proper divisors (5743441153).

11919384927 is a wasteful number, since it uses less digits than its factorization.

11919384927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111959 (or 111953 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The spelling of 11919384927 in words is "eleven billion, nine hundred nineteen million, three hundred eighty-four thousand, nine hundred twenty-seven".