67243663309 has 8 divisors (see below), whose sum is σ = 68943030912. Its totient is φ = 65547118560.

The previous prime is 67243663307. The next prime is 67243663367. The reversal of 67243663309 is 90336634276.

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

It is a cyclic number.

It is not a de Polignac number, because 67243663309 - 2¹ = 67243663307 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 (67243663303) 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, 657429 + ... + 752794.

It is an arithmetic number, because the mean of its divisors is an integer number (8617878864).

Almost surely, 2^67243663309 is an apocalyptic number.

It is an amenable number.

67243663309 is a deficient number, since it is larger than the sum of its proper divisors (1699367603).

67243663309 is a wasteful number, since it uses less digits than its factorization.

67243663309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411427.

The product of its (nonzero) digits is 2939328, while the sum is 49.

The spelling of 67243663309 in words is "sixty-seven billion, two hundred forty-three million, six hundred sixty-three thousand, three hundred nine".