2782763149 has 2 divisors, whose sum is σ = 2782763150. Its totient is φ = 2782763148.

The previous prime is 2782763147. The next prime is 2782763171. The reversal of 2782763149 is 9413672872.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2750478025 + 32285124 = 52445^2 + 5682^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782763149 - 2¹ = 2782763147 is a prime.

Together with 2782763147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2782763147) 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, 1391381574 + 1391381575.

It is an arithmetic number, because the mean of its divisors is an integer number (1391381575).

Almost surely, 2^2782763149 is an apocalyptic number.

It is an amenable number.

2782763149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2782763149 is an equidigital number, since it uses as much as digits as its factorization.

2782763149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The square root of 2782763149 is about 52751.9018519712. The cubic root of 2782763149 is about 1406.5615712221.

The spelling of 2782763149 in words is "two billion, seven hundred eighty-two million, seven hundred sixty-three thousand, one hundred forty-nine".