673806623216 has 20 divisors (see below), whose sum is σ = 1306669123032. Its totient is φ = 336601688256.

The previous prime is 673806623209. The next prime is 673806623239. The reversal of 673806623216 is 612326608376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18833030 + ... + 18868773.

Almost surely, 2^673806623216 is an apocalyptic number.

It is an amenable number.

673806623216 is a deficient number, since it is larger than the sum of its proper divisors (632862499816).

673806623216 is a wasteful number, since it uses less digits than its factorization.

673806623216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37702928 (or 37702922 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 673806623216 in words is "six hundred seventy-three billion, eight hundred six million, six hundred twenty-three thousand, two hundred sixteen".