12189735936 has 132 divisors (see below), whose sum is σ = 40226039152. Its totient is φ = 3482763264.

The previous prime is 12189735917. The next prime is 12189735989. The reversal of 12189735936 is 63953798121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29965 + ... + 158988.

Almost surely, 2^12189735936 is an apocalyptic number.

12189735936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12189735936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20113019576).

12189735936 is an abundant number, since it is smaller than the sum of its proper divisors (28036303216).

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

12189735936 is a wasteful number, since it uses less digits than its factorization.

12189735936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188986 (or 188965 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 12189735936 in words is "twelve billion, one hundred eighty-nine million, seven hundred thirty-five thousand, nine hundred thirty-six".