3244947364721 has 2 divisors, whose sum is σ = 3244947364722. Its totient is φ = 3244947364720.

The previous prime is 3244947364627. The next prime is 3244947364739. The reversal of 3244947364721 is 1274637494423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3021898966321 + 223048398400 = 1738361^2 + 472280^2 .

It is a cyclic number.

It is not a de Polignac number, because 3244947364721 - 2³⁰ = 3243873622897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3244947366721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622473682360 + 1622473682361.

It is an arithmetic number, because the mean of its divisors is an integer number (1622473682361).

Almost surely, 2^{3244947364721} is an apocalyptic number.

It is an amenable number.

3244947364721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3244947364721 is an equidigital number, since it uses as much as digits as its factorization.

3244947364721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24385536, while the sum is 56.

The spelling of 3244947364721 in words is "three trillion, two hundred forty-four billion, nine hundred forty-seven million, three hundred sixty-four thousand, seven hundred twenty-one".