2757243074749 has 2 divisors, whose sum is σ = 2757243074750. Its totient is φ = 2757243074748.

The previous prime is 2757243074741. The next prime is 2757243074791. The reversal of 2757243074749 is 9474703427572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2512722714649 + 244520360100 = 1585157^2 + 494490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2757243074749 - 2³ = 2757243074741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2757243074741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378621537374 + 1378621537375.

It is an arithmetic number, because the mean of its divisors is an integer number (1378621537375).

Almost surely, 2^{2757243074749} is an apocalyptic number.

It is an amenable number.

2757243074749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2757243074749 is an equidigital number, since it uses as much as digits as its factorization.

2757243074749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82978560, while the sum is 61.

The spelling of 2757243074749 in words is "two trillion, seven hundred fifty-seven billion, two hundred forty-three million, seventy-four thousand, seven hundred forty-nine".