673749639928 has 16 divisors (see below), whose sum is σ = 1263311959680. Its totient is φ = 336866450688.

The previous prime is 673749639917. The next prime is 673749639989. The reversal of 673749639928 is 829936947376.

It is a congruent number.

It is an unprimeable number.

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, 697176 + ... + 1354087.

It is an arithmetic number, because the mean of its divisors is an integer number (78956997480).

Almost surely, 2^673749639928 is an apocalyptic number.

It is an amenable number.

673749639928 is a deficient number, since it is larger than the sum of its proper divisors (589562319752).

673749639928 is a wasteful number, since it uses less digits than its factorization.

673749639928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092326 (or 2092322 counting only the distinct ones).

The product of its digits is 740710656, while the sum is 73.

The spelling of 673749639928 in words is "six hundred seventy-three billion, seven hundred forty-nine million, six hundred thirty-nine thousand, nine hundred twenty-eight".