11919367412 has 6 divisors (see below), whose sum is σ = 20858892978. Its totient is φ = 5959683704.

The previous prime is 11919367409. The next prime is 11919367417. The reversal of 11919367412 is 21476391911.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11783970916 + 135396496 = 108554^2 + 11636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11919367417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489920923 + ... + 1489920930.

It is an arithmetic number, because the mean of its divisors is an integer number (3476482163).

Almost surely, 2^11919367412 is an apocalyptic number.

It is an amenable number.

11919367412 is a deficient number, since it is larger than the sum of its proper divisors (8939525566).

11919367412 is a wasteful number, since it uses less digits than its factorization.

11919367412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979841857 (or 2979841855 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The spelling of 11919367412 in words is "eleven billion, nine hundred nineteen million, three hundred sixty-seven thousand, four hundred twelve".