673618603388149 has 2 divisors, whose sum is σ = 673618603388150. Its totient is φ = 673618603388148.

The previous prime is 673618603388119. The next prime is 673618603388167. The reversal of 673618603388149 is 941883306816376.

673618603388149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 579474760687524 + 94143842700625 = 24072282^2 + 9702775^2 .

It is a cyclic number.

It is not a de Polignac number, because 673618603388149 - 2⁵ = 673618603388117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673618603388119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336809301694074 + 336809301694075.

It is an arithmetic number, because the mean of its divisors is an integer number (336809301694075).

Almost surely, 2^{673618603388149} is an apocalyptic number.

It is an amenable number.

673618603388149 is a deficient number, since it is larger than the sum of its proper divisors (1).

673618603388149 is an equidigital number, since it uses as much as digits as its factorization.

673618603388149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 752467968, while the sum is 73.

The spelling of 673618603388149 in words is "six hundred seventy-three trillion, six hundred eighteen billion, six hundred three million, three hundred eighty-eight thousand, one hundred forty-nine".