78655824005347 has 4 divisors (see below), whose sum is σ = 78655911954880. Its totient is φ = 78655736055816.

The previous prime is 78655824005329. The next prime is 78655824005401. The reversal of 78655824005347 is 74350042855687.

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-78655824005347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78655824905347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42619347 + ... + 44426572.

It is an arithmetic number, because the mean of its divisors is an integer number (19663977988720).

Almost surely, 2^{78655824005347} is an apocalyptic number.

78655824005347 is a deficient number, since it is larger than the sum of its proper divisors (87949533).

78655824005347 is an equidigital number, since it uses as much as digits as its factorization.

78655824005347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87949532.

The product of its (nonzero) digits is 225792000, while the sum is 64.

The spelling of 78655824005347 in words is "seventy-eight trillion, six hundred fifty-five billion, eight hundred twenty-four million, five thousand, three hundred forty-seven".