12774633647721 has 8 divisors (see below), whose sum is σ = 18581285305824. Its totient is φ = 7742202210720.

The previous prime is 12774633647663. The next prime is 12774633647759.

12774633647721 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12774633647721 - 2¹¹ = 12774633645673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12774633647761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193555055236 + ... + 193555055301.

It is an arithmetic number, because the mean of its divisors is an integer number (2322660663228).

Almost surely, 2^{12774633647721} is an apocalyptic number.

12774633647721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12774633647721 is a deficient number, since it is larger than the sum of its proper divisors (5806651658103).

12774633647721 is a wasteful number, since it uses less digits than its factorization.

12774633647721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387110110551.

The product of its digits is 49787136, while the sum is 60.

The spelling of 12774633647721 in words is "twelve trillion, seven hundred seventy-four billion, six hundred thirty-three million, six hundred forty-seven thousand, seven hundred twenty-one".