2744117212721 has 2 divisors, whose sum is σ = 2744117212722. Its totient is φ = 2744117212720.

The previous prime is 2744117212687. The next prime is 2744117212723. The reversal of 2744117212721 is 1272127114472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2224080082225 + 520037130496 = 1491335^2 + 721136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2744117212721 is a prime.

Together with 2744117212723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2744117212723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372058606360 + 1372058606361.

It is an arithmetic number, because the mean of its divisors is an integer number (1372058606361).

Almost surely, 2^{2744117212721} is an apocalyptic number.

It is an amenable number.

2744117212721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2744117212721 is an equidigital number, since it uses as much as digits as its factorization.

2744117212721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87808, while the sum is 41.

The spelling of 2744117212721 in words is "two trillion, seven hundred forty-four billion, one hundred seventeen million, two hundred twelve thousand, seven hundred twenty-one".