78838888883887 has 8 divisors (see below), whose sum is σ = 86006710858320. Its totient is φ = 71671175285760.

The previous prime is 78838888883837. The next prime is 78838888883927.

78838888883887 is nontrivially palindromic in base 10.

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 78838888883887 - 2¹⁵ = 78838888851119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78838888883792 and 78838888883801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78838888883837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25569298 + ... + 28486255.

It is an arithmetic number, because the mean of its divisors is an integer number (10750838857290).

Almost surely, 2^{78838888883887} is an apocalyptic number.

78838888883887 is a deficient number, since it is larger than the sum of its proper divisors (7167821974433).

78838888883887 is a wasteful number, since it uses less digits than its factorization.

78838888883887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54188153.

The product of its digits is 473520144384, while the sum is 100.

The spelling of 78838888883887 in words is "seventy-eight trillion, eight hundred thirty-eight billion, eight hundred eighty-eight million, eight hundred eighty-three thousand, eight hundred eighty-seven".