3364774781 has 2 divisors, whose sum is σ = 3364774782. Its totient is φ = 3364774780.

The previous prime is 3364774747. The next prime is 3364774817. The reversal of 3364774781 is 1874774633.

Together with next prime (3364774817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3187618681 + 177156100 = 56459^2 + 13310^2 .

It is a cyclic number.

It is not a de Polignac number, because 3364774781 - 2⁶ = 3364774717 is a prime.

It is a super-2 number, since 2×3364774781² = 22643418653707195922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3364774711) 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, 1682387390 + 1682387391.

It is an arithmetic number, because the mean of its divisors is an integer number (1682387391).

Almost surely, 2^3364774781 is an apocalyptic number.

It is an amenable number.

3364774781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3364774781 is an equidigital number, since it uses as much as digits as its factorization.

3364774781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 50.

The square root of 3364774781 is about 58006.6787620184. The cubic root of 3364774781 is about 1498.4836203191.

The spelling of 3364774781 in words is "three billion, three hundred sixty-four million, seven hundred seventy-four thousand, seven hundred eighty-one".