673515319193 has 2 divisors, whose sum is σ = 673515319194. Its totient is φ = 673515319192.

The previous prime is 673515319163. The next prime is 673515319219. The reversal of 673515319193 is 391913515376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377158113424 + 296357205769 = 614132^2 + 544387^2 .

It is a cyclic number.

It is not a de Polignac number, because 673515319193 - 2¹⁴ = 673515302809 is a prime.

It is not a weakly prime, because it can be changed into another prime (673515319153) 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, 336757659596 + 336757659597.

It is an arithmetic number, because the mean of its divisors is an integer number (336757659597).

Almost surely, 2^673515319193 is an apocalyptic number.

It is an amenable number.

673515319193 is a deficient number, since it is larger than the sum of its proper divisors (1).

673515319193 is an equidigital number, since it uses as much as digits as its factorization.

673515319193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2296350, while the sum is 53.

The spelling of 673515319193 in words is "six hundred seventy-three billion, five hundred fifteen million, three hundred nineteen thousand, one hundred ninety-three".