2781241499 has 2 divisors, whose sum is σ = 2781241500. Its totient is φ = 2781241498.

The previous prime is 2781241483. The next prime is 2781241553. The reversal of 2781241499 is 9941421872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2781241499 - 2⁴ = 2781241483 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2781241699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390620749 + 1390620750.

It is an arithmetic number, because the mean of its divisors is an integer number (1390620750).

Almost surely, 2^2781241499 is an apocalyptic number.

2781241499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2781241499 is an equidigital number, since it uses as much as digits as its factorization.

2781241499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The square root of 2781241499 is about 52737.4771770512. The cubic root of 2781241499 is about 1406.3051492735.

The spelling of 2781241499 in words is "two billion, seven hundred eighty-one million, two hundred forty-one thousand, four hundred ninety-nine".