673871530573 has 4 divisors (see below), whose sum is σ = 673873361568. Its totient is φ = 673869699580.

The previous prime is 673871530571. The next prime is 673871530637. The reversal of 673871530573 is 375035178376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 673871530573 - 2¹ = 673871530571 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 (673871530571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150193 + ... + 1170598.

It is an arithmetic number, because the mean of its divisors is an integer number (168468340392).

Almost surely, 2^673871530573 is an apocalyptic number.

It is an amenable number.

673871530573 is a deficient number, since it is larger than the sum of its proper divisors (1830995).

673871530573 is a wasteful number, since it uses less digits than its factorization.

673871530573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830994.

The product of its (nonzero) digits is 11113200, while the sum is 55.

The spelling of 673871530573 in words is "six hundred seventy-three billion, eight hundred seventy-one million, five hundred thirty thousand, five hundred seventy-three".