67143668047 has 4 divisors (see below), whose sum is σ = 68958361816. Its totient is φ = 65328974280.

The previous prime is 67143667951. The next prime is 67143668057. The reversal of 67143668047 is 74086634176.

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

It is a cyclic number.

It is not a de Polignac number, because 67143668047 - 2³⁵ = 32783929679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67143667985 and 67143668003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67143668057) 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, 907346829 + ... + 907346902.

It is an arithmetic number, because the mean of its divisors is an integer number (17239590454).

Almost surely, 2^67143668047 is an apocalyptic number.

67143668047 is a deficient number, since it is larger than the sum of its proper divisors (1814693769).

67143668047 is a wasteful number, since it uses less digits than its factorization.

67143668047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814693768.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 67143668047 in words is "sixty-seven billion, one hundred forty-three million, six hundred sixty-eight thousand, forty-seven".