12018819176 has 96 divisors (see below), whose sum is σ = 28269549000. Its totient is φ = 4748212224.

The previous prime is 12018819149. The next prime is 12018819199. The reversal of 12018819176 is 67191881021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8005596676 + 4013222500 = 89474^2 + 63350^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5752340 + ... + 5754428.

Almost surely, 2^12018819176 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12018819176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14134774500).

12018819176 is an abundant number, since it is smaller than the sum of its proper divisors (16250729824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12018819176 is a wasteful number, since it uses less digits than its factorization.

12018819176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 44.

The spelling of 12018819176 in words is "twelve billion, eighteen million, eight hundred nineteen thousand, one hundred seventy-six".