12798744320 has 72 divisors (see below), whose sum is σ = 31646025600. Its totient is φ = 4954337280.

The previous prime is 12798744307. The next prime is 12798744349. The reversal of 12798744320 is 2344789721.

It is a happy number.

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, 121595 + ... + 200954.

Almost surely, 2^12798744320 is an apocalyptic number.

12798744320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12798744320 is an abundant number, since it is smaller than the sum of its proper divisors (18847281280).

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

12798744320 is an equidigital number, since it uses as much as digits as its factorization.

12798744320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322601 (or 322587 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 12798744320 in words is "twelve billion, seven hundred ninety-eight million, seven hundred forty-four thousand, three hundred twenty".