67730066735 has 4 divisors (see below), whose sum is σ = 81276080088. Its totient is φ = 54184053384.

The previous prime is 67730066717. The next prime is 67730066737. The reversal of 67730066735 is 53766003776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67730066735 - 2¹² = 67730062639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67730066737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6773006669 + ... + 6773006678.

It is an arithmetic number, because the mean of its divisors is an integer number (20319020022).

Almost surely, 2^67730066735 is an apocalyptic number.

67730066735 is a deficient number, since it is larger than the sum of its proper divisors (13546013353).

67730066735 is a wasteful number, since it uses less digits than its factorization.

67730066735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13546013352.

The product of its (nonzero) digits is 3333960, while the sum is 50.

The spelling of 67730066735 in words is "sixty-seven billion, seven hundred thirty million, sixty-six thousand, seven hundred thirty-five".