7243655045749 has 2 divisors, whose sum is σ = 7243655045750. Its totient is φ = 7243655045748.

The previous prime is 7243655045719. The next prime is 7243655045821. The reversal of 7243655045749 is 9475405563427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6906857048100 + 336797997649 = 2628090^2 + 580343^2 .

It is a cyclic number.

It is not a de Polignac number, because 7243655045749 - 2¹³ = 7243655037557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7243655045719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621827522874 + 3621827522875.

It is an arithmetic number, because the mean of its divisors is an integer number (3621827522875).

Almost surely, 2^{7243655045749} is an apocalyptic number.

It is an amenable number.

7243655045749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243655045749 is an equidigital number, since it uses as much as digits as its factorization.

7243655045749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008000, while the sum is 61.

The spelling of 7243655045749 in words is "seven trillion, two hundred forty-three billion, six hundred fifty-five million, forty-five thousand, seven hundred forty-nine".