12273427968 has 80 divisors (see below), whose sum is σ = 32769996336. Its totient is φ = 4082032640.

The previous prime is 12273427939. The next prime is 12273427981. The reversal of 12273427968 is 86972437221.

It is a self number, because there is not a number n which added to its sum of digits gives 12273427968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699430 + ... + 716762.

Almost surely, 2^12273427968 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 12273427968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16384998168).

12273427968 is an abundant number, since it is smaller than the sum of its proper divisors (20496568368).

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

12273427968 is an equidigital number, since it uses as much as digits as its factorization.

12273427968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17815 (or 17799 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The spelling of 12273427968 in words is "twelve billion, two hundred seventy-three million, four hundred twenty-seven thousand, nine hundred sixty-eight".