2742146809 has 2 divisors, whose sum is σ = 2742146810. Its totient is φ = 2742146808.

The previous prime is 2742146783. The next prime is 2742146831. The reversal of 2742146809 is 9086412472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1878962409 + 863184400 = 43347^2 + 29380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2742146809 - 2¹³ = 2742138617 is a prime.

It is not a weakly prime, because it can be changed into another prime (2742146879) 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, 1371073404 + 1371073405.

It is an arithmetic number, because the mean of its divisors is an integer number (1371073405).

Almost surely, 2^2742146809 is an apocalyptic number.

It is an amenable number.

2742146809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2742146809 is an equidigital number, since it uses as much as digits as its factorization.

2742146809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 2742146809 is about 52365.5116369543. The cubic root of 2742146809 is about 1399.6847604851.

The spelling of 2742146809 in words is "two billion, seven hundred forty-two million, one hundred forty-six thousand, eight hundred nine".