683394978337 has 2 divisors, whose sum is σ = 683394978338. Its totient is φ = 683394978336.

The previous prime is 683394978293. The next prime is 683394978341. The reversal of 683394978337 is 733879493386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393952054336 + 289442924001 = 627656^2 + 537999^2 .

It is a cyclic number.

It is not a de Polignac number, because 683394978337 - 2⁷ = 683394978209 is a prime.

It is not a weakly prime, because it can be changed into another prime (683394978347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341697489168 + 341697489169.

It is an arithmetic number, because the mean of its divisors is an integer number (341697489169).

Almost surely, 2^683394978337 is an apocalyptic number.

It is an amenable number.

683394978337 is a deficient number, since it is larger than the sum of its proper divisors (1).

683394978337 is an equidigital number, since it uses as much as digits as its factorization.

683394978337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493807104, while the sum is 70.

The spelling of 683394978337 in words is "six hundred eighty-three billion, three hundred ninety-four million, nine hundred seventy-eight thousand, three hundred thirty-seven".