2745781373 has 2 divisors, whose sum is σ = 2745781374. Its totient is φ = 2745781372.

The previous prime is 2745781319. The next prime is 2745781391. The reversal of 2745781373 is 3731875472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849258009 + 896523364 = 43003^2 + 29942^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745781373 - 2⁶ = 2745781309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2745781573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372890686 + 1372890687.

It is an arithmetic number, because the mean of its divisors is an integer number (1372890687).

Almost surely, 2^2745781373 is an apocalyptic number.

It is an amenable number.

2745781373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745781373 is an equidigital number, since it uses as much as digits as its factorization.

2745781373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 47.

The square root of 2745781373 is about 52400.2039404428. The cubic root of 2745781373 is about 1400.3028890573.

The spelling of 2745781373 in words is "two billion, seven hundred forty-five million, seven hundred eighty-one thousand, three hundred seventy-three".