2747342861 has 2 divisors, whose sum is σ = 2747342862. Its totient is φ = 2747342860.

The previous prime is 2747342837. The next prime is 2747342863. The reversal of 2747342861 is 1682437472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1601520361 + 1145822500 = 40019^2 + 33850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2747342861 - 2⁶ = 2747342797 is a prime.

It is a Sophie Germain prime.

Together with 2747342863, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2747342863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1373671430 + 1373671431.

It is an arithmetic number, because the mean of its divisors is an integer number (1373671431).

Almost surely, 2^2747342861 is an apocalyptic number.

It is an amenable number.

2747342861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2747342861 is an equidigital number, since it uses as much as digits as its factorization.

2747342861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 44.

The square root of 2747342861 is about 52415.1014594077. The cubic root of 2747342861 is about 1400.5682830688.

The spelling of 2747342861 in words is "two billion, seven hundred forty-seven million, three hundred forty-two thousand, eight hundred sixty-one".