673400332313 has 2 divisors, whose sum is σ = 673400332314. Its totient is φ = 673400332312.

The previous prime is 673400332303. The next prime is 673400332331. The reversal of 673400332313 is 313233004376.

Together with next prime (673400332331) 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., 443678552464 + 229721779849 = 666092^2 + 479293^2 .

It is a cyclic number.

It is not a de Polignac number, because 673400332313 - 2¹⁸ = 673400070169 is a prime.

It is not a weakly prime, because it can be changed into another prime (673400332303) 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, 336700166156 + 336700166157.

It is an arithmetic number, because the mean of its divisors is an integer number (336700166157).

Almost surely, 2^673400332313 is an apocalyptic number.

It is an amenable number.

673400332313 is a deficient number, since it is larger than the sum of its proper divisors (1).

673400332313 is an equidigital number, since it uses as much as digits as its factorization.

673400332313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 35.

Adding to 673400332313 its reverse (313233004376), we get a palindrome (986633336689).

The spelling of 673400332313 in words is "six hundred seventy-three billion, four hundred million, three hundred thirty-two thousand, three hundred thirteen".