2781334613 has 2 divisors, whose sum is σ = 2781334614. Its totient is φ = 2781334612.

The previous prime is 2781334607. The next prime is 2781334739. The reversal of 2781334613 is 3164331872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2494303249 + 287031364 = 49943^2 + 16942^2 .

It is a cyclic number.

It is not a de Polignac number, because 2781334613 - 2⁴ = 2781334597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2781334313) 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, 1390667306 + 1390667307.

It is an arithmetic number, because the mean of its divisors is an integer number (1390667307).

Almost surely, 2^2781334613 is an apocalyptic number.

It is an amenable number.

2781334613 is a deficient number, since it is larger than the sum of its proper divisors (1).

2781334613 is an equidigital number, since it uses as much as digits as its factorization.

2781334613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 2781334613 is about 52738.3599763967. The cubic root of 2781334613 is about 1406.3208431326.

It can be divided in two parts, 27813 and 34613, that added together give a palindrome (62426).

The spelling of 2781334613 in words is "two billion, seven hundred eighty-one million, three hundred thirty-four thousand, six hundred thirteen".