2740741773221 has 2 divisors, whose sum is σ = 2740741773222. Its totient is φ = 2740741773220.

The previous prime is 2740741773197. The next prime is 2740741773229. The reversal of 2740741773221 is 1223771470472.

2740741773221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2278016676100 + 462725097121 = 1509310^2 + 680239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2740741773221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2740741773229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370370886610 + 1370370886611.

It is an arithmetic number, because the mean of its divisors is an integer number (1370370886611).

Almost surely, 2^{2740741773221} is an apocalyptic number.

It is an amenable number.

2740741773221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740741773221 is an equidigital number, since it uses as much as digits as its factorization.

2740741773221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921984, while the sum is 47.

The spelling of 2740741773221 in words is "two trillion, seven hundred forty billion, seven hundred forty-one million, seven hundred seventy-three thousand, two hundred twenty-one".