78788188795 has 4 divisors (see below), whose sum is σ = 94545826560. Its totient is φ = 63030551032.

The previous prime is 78788188769. The next prime is 78788188837. The reversal of 78788188795 is 59788188787.

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 78788188795 - 2⁷ = 78788188667 is a prime.

It is an unprimeable number.

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, 7878818875 + ... + 7878818884.

It is an arithmetic number, because the mean of its divisors is an integer number (23636456640).

Almost surely, 2^78788188795 is an apocalyptic number.

78788188795 is a deficient number, since it is larger than the sum of its proper divisors (15757637765).

78788188795 is a wasteful number, since it uses less digits than its factorization.

78788188795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15757637764.

The product of its digits is 505774080, while the sum is 76.

The spelling of 78788188795 in words is "seventy-eight billion, seven hundred eighty-eight million, one hundred eighty-eight thousand, seven hundred ninety-five".