12395913981673 has 2 divisors, whose sum is σ = 12395913981674. Its totient is φ = 12395913981672.

The previous prime is 12395913981641. The next prime is 12395913981727. The reversal of 12395913981673 is 37618931959321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12134723481049 + 261190500624 = 3483493^2 + 511068^2 .

It is a cyclic number.

It is not a de Polignac number, because 12395913981673 - 2⁵ = 12395913981641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12395913981599 and 12395913981608.

It is not a weakly prime, because it can be changed into another prime (12395913981613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6197956990836 + 6197956990837.

It is an arithmetic number, because the mean of its divisors is an integer number (6197956990837).

Almost surely, 2^{12395913981673} is an apocalyptic number.

It is an amenable number.

12395913981673 is a deficient number, since it is larger than the sum of its proper divisors (1).

12395913981673 is an equidigital number, since it uses as much as digits as its factorization.

12395913981673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66134880, while the sum is 67.

The spelling of 12395913981673 in words is "twelve trillion, three hundred ninety-five billion, nine hundred thirteen million, nine hundred eighty-one thousand, six hundred seventy-three".