12847650840401 has 4 divisors (see below), whose sum is σ = 13835931674292. Its totient is φ = 11859370006512.

The previous prime is 12847650840383. The next prime is 12847650840413. The reversal of 12847650840401 is 10404805674821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7538539009600 + 5309111830801 = 2745640^2 + 2304151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12847650840401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12847650840401.

It is not an unprimeable number, because it can be changed into a prime (12847650840701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494140416926 + ... + 494140416951.

It is an arithmetic number, because the mean of its divisors is an integer number (3458982918573).

Almost surely, 2^{12847650840401} is an apocalyptic number.

It is an amenable number.

12847650840401 is a deficient number, since it is larger than the sum of its proper divisors (988280833891).

12847650840401 is an equidigital number, since it uses as much as digits as its factorization.

12847650840401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988280833890.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 12847650840401 in words is "twelve trillion, eight hundred forty-seven billion, six hundred fifty million, eight hundred forty thousand, four hundred one".