673243276457303 has 4 divisors (see below), whose sum is σ = 712845822131280. Its totient is φ = 633640730783328.

The previous prime is 673243276457251. The next prime is 673243276457357. The reversal of 673243276457303 is 303754672342376.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673243276457303 - 2¹² = 673243276453207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673243276457503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19801272836963 + ... + 19801272836996.

It is an arithmetic number, because the mean of its divisors is an integer number (178211455532820).

Almost surely, 2^{673243276457303} is an apocalyptic number.

673243276457303 is a deficient number, since it is larger than the sum of its proper divisors (39602545673977).

673243276457303 is a wasteful number, since it uses less digits than its factorization.

673243276457303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39602545673976.

The product of its (nonzero) digits is 320060160, while the sum is 62.

The spelling of 673243276457303 in words is "six hundred seventy-three trillion, two hundred forty-three billion, two hundred seventy-six million, four hundred fifty-seven thousand, three hundred three".