3818666839733 has 2 divisors, whose sum is σ = 3818666839734. Its totient is φ = 3818666839732.

The previous prime is 3818666839651. The next prime is 3818666839777. The reversal of 3818666839733 is 3379386668183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3703323057604 + 115343782129 = 1924402^2 + 339623^2 .

It is a cyclic number.

It is not a de Polignac number, because 3818666839733 - 2¹⁸ = 3818666577589 is a prime.

It is a super-2 number, since 2×3818666839733² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3818666839783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909333419866 + 1909333419867.

It is an arithmetic number, because the mean of its divisors is an integer number (1909333419867).

Almost surely, 2^{3818666839733} is an apocalyptic number.

It is an amenable number.

3818666839733 is a deficient number, since it is larger than the sum of its proper divisors (1).

3818666839733 is an equidigital number, since it uses as much as digits as its factorization.

3818666839733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564350976, while the sum is 71.

The spelling of 3818666839733 in words is "three trillion, eight hundred eighteen billion, six hundred sixty-six million, eight hundred thirty-nine thousand, seven hundred thirty-three".