67745877813 has 12 divisors (see below), whose sum is σ = 98441118048. Its totient is φ = 44893474920.

The previous prime is 67745877809. The next prime is 67745877839. The reversal of 67745877813 is 31877854776.

It is not a de Polignac number, because 67745877813 - 2² = 67745877809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67745877113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22535383 + ... + 22538388.

It is an arithmetic number, because the mean of its divisors is an integer number (8203426504).

Almost surely, 2^67745877813 is an apocalyptic number.

It is an amenable number.

67745877813 is a deficient number, since it is larger than the sum of its proper divisors (30695240235).

67745877813 is a wasteful number, since it uses less digits than its factorization.

67745877813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45073944 (or 45073941 counting only the distinct ones).

The product of its digits is 55319040, while the sum is 63.

The spelling of 67745877813 in words is "sixty-seven billion, seven hundred forty-five million, eight hundred seventy-seven thousand, eight hundred thirteen".