78066567450343 has 4 divisors (see below), whose sum is σ = 78084082951200. Its totient is φ = 78049051949488.

The previous prime is 78066567450307. The next prime is 78066567450379. The reversal of 78066567450343 is 34305476566087.

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

It is an interprime number because it is at equal distance from previous prime (78066567450307) and next prime (78066567450379).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78066567450343 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 (78066567457343) 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 3 ways as a sum of consecutive naturals, for example, 8757743743 + ... + 8757752656.

It is an arithmetic number, because the mean of its divisors is an integer number (19521020737800).

Almost surely, 2^{78066567450343} is an apocalyptic number.

78066567450343 is a deficient number, since it is larger than the sum of its proper divisors (17515500857).

78066567450343 is a wasteful number, since it uses less digits than its factorization.

78066567450343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17515500856.

The product of its (nonzero) digits is 304819200, while the sum is 64.

The spelling of 78066567450343 in words is "seventy-eight trillion, sixty-six billion, five hundred sixty-seven million, four hundred fifty thousand, three hundred forty-three".