67682739791 has 16 divisors (see below), whose sum is σ = 73248926400. Its totient is φ = 62346670848.

The previous prime is 67682739781. The next prime is 67682739799. The reversal of 67682739791 is 19793728676.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67682739791 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 (67682739799) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 129035 + ... + 389891.

It is an arithmetic number, because the mean of its divisors is an integer number (4578057900).

Almost surely, 2^67682739791 is an apocalyptic number.

67682739791 is a deficient number, since it is larger than the sum of its proper divisors (5566186609).

67682739791 is a wasteful number, since it uses less digits than its factorization.

67682739791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261298.

The product of its digits is 48009024, while the sum is 65.

The spelling of 67682739791 in words is "sixty-seven billion, six hundred eighty-two million, seven hundred thirty-nine thousand, seven hundred ninety-one".