67692648728 has 16 divisors (see below), whose sum is σ = 126934877760. Its totient is φ = 33843348000.

The previous prime is 67692648719. The next prime is 67692648731. The reversal of 67692648728 is 82784629676.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273863 + ... + 458678.

It is an arithmetic number, because the mean of its divisors is an integer number (7933429860).

Almost surely, 2^67692648728 is an apocalyptic number.

It is an amenable number.

67692648728 is a deficient number, since it is larger than the sum of its proper divisors (59242229032).

67692648728 is a wasteful number, since it uses less digits than its factorization.

67692648728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744098 (or 744094 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 65.

The spelling of 67692648728 in words is "sixty-seven billion, six hundred ninety-two million, six hundred forty-eight thousand, seven hundred twenty-eight".