12119177428 has 12 divisors (see below), whose sum is σ = 21209633172. Its totient is φ = 6059282240.

The previous prime is 12119177423. The next prime is 12119177429. The reversal of 12119177428 is 82477191121.

It can be written as a sum of positive squares in 2 ways, for example, as 7150055364 + 4969122064 = 84558^2 + 70492^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12119177423) 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 3 ways as a sum of consecutive naturals, for example, 28326 + ... + 158242.

It is an arithmetic number, because the mean of its divisors is an integer number (1767469431).

Almost surely, 2^12119177428 is an apocalyptic number.

It is an amenable number.

12119177428 is a deficient number, since it is larger than the sum of its proper divisors (9090455744).

12119177428 is a wasteful number, since it uses less digits than its factorization.

12119177428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153242 (or 153240 counting only the distinct ones).

The product of its digits is 56448, while the sum is 43.

The spelling of 12119177428 in words is "twelve billion, one hundred nineteen million, one hundred seventy-seven thousand, four hundred twenty-eight".