67622728636 has 12 divisors (see below), whose sum is σ = 118359019912. Its totient is φ = 33805865808.

The previous prime is 67622728631. The next prime is 67622728643. The reversal of 67622728636 is 63682722676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67622728631) by changing a digit.

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, 1346895 + ... + 1396198.

Almost surely, 2^67622728636 is an apocalyptic number.

It is an amenable number.

67622728636 is a deficient number, since it is larger than the sum of its proper divisors (50736291276).

67622728636 is a wasteful number, since it uses less digits than its factorization.

67622728636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749260 (or 2749258 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 55.

The spelling of 67622728636 in words is "sixty-seven billion, six hundred twenty-two million, seven hundred twenty-eight thousand, six hundred thirty-six".