2543749907 has 2 divisors, whose sum is σ = 2543749908. Its totient is φ = 2543749906.

The previous prime is 2543749867. The next prime is 2543749913. The reversal of 2543749907 is 7099473452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2543749907 - 2¹⁶ = 2543684371 is a prime.

It is not a weakly prime, because it can be changed into another prime (2543749807) 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, 1271874953 + 1271874954.

It is an arithmetic number, because the mean of its divisors is an integer number (1271874954).

Almost surely, 2^2543749907 is an apocalyptic number.

2543749907 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543749907 is an equidigital number, since it uses as much as digits as its factorization.

2543749907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 2543749907 is about 50435.6015826123. The cubic root of 2543749907 is about 1365.0801040710.

The spelling of 2543749907 in words is "two billion, five hundred forty-three million, seven hundred forty-nine thousand, nine hundred seven".