67716307693 has 8 divisors (see below), whose sum is σ = 70824450816. Its totient is φ = 64621827600.

The previous prime is 67716307657. The next prime is 67716307709. The reversal of 67716307693 is 39670361776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67716307693 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 (67716307643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3405618 + ... + 3425443.

It is an arithmetic number, because the mean of its divisors is an integer number (8853056352).

Almost surely, 2^67716307693 is an apocalyptic number.

It is an amenable number.

67716307693 is a deficient number, since it is larger than the sum of its proper divisors (3108143123).

67716307693 is a wasteful number, since it uses less digits than its factorization.

67716307693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831515.

The product of its (nonzero) digits is 6001128, while the sum is 55.

The spelling of 67716307693 in words is "sixty-seven billion, seven hundred sixteen million, three hundred seven thousand, six hundred ninety-three".