12020726928 has 160 divisors (see below), whose sum is σ = 37650161664. Its totient is φ = 3226208256.

The previous prime is 12020726897. The next prime is 12020726929. The reversal of 12020726928 is 82962702021.

It is not an unprimeable number, because it can be changed into a prime (12020726929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3465451 + ... + 3468917.

Almost surely, 2^12020726928 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 12020726928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18825080832).

12020726928 is an abundant number, since it is smaller than the sum of its proper divisors (25629434736).

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

12020726928 is a wasteful number, since it uses less digits than its factorization.

12020726928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109 (or 4103 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 12020726928 in words is "twelve billion, twenty million, seven hundred twenty-six thousand, nine hundred twenty-eight".