12775198720 has 104 divisors (see below), whose sum is σ = 32271229440. Its totient is φ = 4840980480.

The previous prime is 12775198703. The next prime is 12775198757. The reversal of 12775198720 is 2789157721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372705 + ... + 405535.

Almost surely, 2^12775198720 is an apocalyptic number.

12775198720 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 12775198720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16135614720).

12775198720 is an abundant number, since it is smaller than the sum of its proper divisors (19496030720).

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

12775198720 is an equidigital number, since it uses as much as digits as its factorization.

12775198720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32879 (or 32857 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 12775198720 in words is "twelve billion, seven hundred seventy-five million, one hundred ninety-eight thousand, seven hundred twenty".