12026797920 has 384 divisors, whose sum is σ = 43188526080. Its totient is φ = 3124961280.

The previous prime is 12026797919. The next prime is 12026797931. The reversal of 12026797920 is 2979762021.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34659187 + ... + 34659533.

It is an arithmetic number, because the mean of its divisors is an integer number (112470120).

Almost surely, 2^12026797920 is an apocalyptic number.

12026797920 is a gapful number since it is divisible by the number (10) 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 12026797920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21594263040).

12026797920 is an abundant number, since it is smaller than the sum of its proper divisors (31161728160).

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

12026797920 is a wasteful number, since it uses less digits than its factorization.

12026797920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 12026797920 in words is "twelve billion, twenty-six million, seven hundred ninety-seven thousand, nine hundred twenty".