67679836791 has 48 divisors (see below), whose sum is σ = 105789519360. Its totient is φ = 38374015680.

The previous prime is 67679836753. The next prime is 67679836867. The reversal of 67679836791 is 19763897676.

67679836791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67679836791 - 2¹¹ = 67679834743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67679836291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21208006 + ... + 21211196.

It is an arithmetic number, because the mean of its divisors is an integer number (2203948320).

Almost surely, 2^67679836791 is an apocalyptic number.

67679836791 is a deficient number, since it is larger than the sum of its proper divisors (38109682569).

67679836791 is a wasteful number, since it uses less digits than its factorization.

67679836791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284 (or 4277 counting only the distinct ones).

The product of its digits is 144027072, while the sum is 69.

The spelling of 67679836791 in words is "sixty-seven billion, six hundred seventy-nine million, eight hundred thirty-six thousand, seven hundred ninety-one".