673688363045 has 16 divisors (see below), whose sum is σ = 814038413760. Its totient is φ = 535221316224.

The previous prime is 673688363027. The next prime is 673688363077. The reversal of 673688363045 is 540363886376.

It is a cyclic number.

It is not a de Polignac number, because 673688363045 - 2²² = 673684168741 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 321359 + ... + 1204428.

It is an arithmetic number, because the mean of its divisors is an integer number (50877400860).

Almost surely, 2^673688363045 is an apocalyptic number.

It is an amenable number.

673688363045 is a deficient number, since it is larger than the sum of its proper divisors (140350050715).

673688363045 is a wasteful number, since it uses less digits than its factorization.

673688363045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526404.

The product of its (nonzero) digits is 52254720, while the sum is 59.

The spelling of 673688363045 in words is "six hundred seventy-three billion, six hundred eighty-eight million, three hundred sixty-three thousand, forty-five".