2757746904509 has 2 divisors, whose sum is σ = 2757746904510. Its totient is φ = 2757746904508.

The previous prime is 2757746904449. The next prime is 2757746904511. The reversal of 2757746904509 is 9054096477572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2736212222500 + 21534682009 = 1654150^2 + 146747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2757746904509 is a prime.

Together with 2757746904511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2757746904569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378873452254 + 1378873452255.

It is an arithmetic number, because the mean of its divisors is an integer number (1378873452255).

Almost surely, 2^{2757746904509} is an apocalyptic number.

It is an amenable number.

2757746904509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2757746904509 is an equidigital number, since it uses as much as digits as its factorization.

2757746904509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 133358400, while the sum is 65.

The spelling of 2757746904509 in words is "two trillion, seven hundred fifty-seven billion, seven hundred forty-six million, nine hundred four thousand, five hundred nine".