673646018616832 has 40 divisors (see below), whose sum is σ = 1345979683204200. Its totient is φ = 336822168274944.

The previous prime is 673646018616679. The next prime is 673646018616853. The reversal of 673646018616832 is 238616810646376.

It is a happy number.

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, 237602094 + ... + 240420562.

It is an arithmetic number, because the mean of its divisors is an integer number (33649492080105).

Almost surely, 2^{673646018616832} is an apocalyptic number.

It is an amenable number.

673646018616832 is a deficient number, since it is larger than the sum of its proper divisors (672333664587368).

673646018616832 is an equidigital number, since it uses as much as digits as its factorization.

673646018616832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285306 (or 3285290 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 67.

The spelling of 673646018616832 in words is "six hundred seventy-three trillion, six hundred forty-six billion, eighteen million, six hundred sixteen thousand, eight hundred thirty-two".