673302645872 has 20 divisors (see below), whose sum is σ = 1305511444896. Its totient is φ = 336396466560.

The previous prime is 673302645857. The next prime is 673302645889. The reversal of 673302645872 is 278546203376.

It is a happy number.

673302645872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 15906728 + ... + 15948999.

Almost surely, 2^673302645872 is an apocalyptic number.

It is an amenable number.

673302645872 is a deficient number, since it is larger than the sum of its proper divisors (632208799024).

673302645872 is a wasteful number, since it uses less digits than its factorization.

673302645872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31857056 (or 31857050 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 53.

The spelling of 673302645872 in words is "six hundred seventy-three billion, three hundred two million, six hundred forty-five thousand, eight hundred seventy-two".