67696076447 has 4 divisors (see below), whose sum is σ = 67805440680. Its totient is φ = 67586712216.

The previous prime is 67696076417. The next prime is 67696076453. The reversal of 67696076447 is 74467069676.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67696076447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67696076447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67696076407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54681188 + ... + 54682425.

It is an arithmetic number, because the mean of its divisors is an integer number (16951360170).

Almost surely, 2^67696076447 is an apocalyptic number.

67696076447 is a deficient number, since it is larger than the sum of its proper divisors (109364233).

67696076447 is a wasteful number, since it uses less digits than its factorization.

67696076447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109364232.

The product of its (nonzero) digits is 64012032, while the sum is 62.

The spelling of 67696076447 in words is "sixty-seven billion, six hundred ninety-six million, seventy-six thousand, four hundred forty-seven".