2742523765481 has 2 divisors, whose sum is σ = 2742523765482. Its totient is φ = 2742523765480.

The previous prime is 2742523765439. The next prime is 2742523765633. The reversal of 2742523765481 is 1845673252472.

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., 2587220778256 + 155302987225 = 1608484^2 + 394085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2742523765481 - 2³⁰ = 2741450023657 is a prime.

It is a super-2 number, since 2×2742523765481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2742523765381) 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, 1371261882740 + 1371261882741.

It is an arithmetic number, because the mean of its divisors is an integer number (1371261882741).

Almost surely, 2^{2742523765481} is an apocalyptic number.

It is an amenable number.

2742523765481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2742523765481 is an equidigital number, since it uses as much as digits as its factorization.

2742523765481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22579200, while the sum is 56.

The spelling of 2742523765481 in words is "two trillion, seven hundred forty-two billion, five hundred twenty-three million, seven hundred sixty-five thousand, four hundred eighty-one".