78831283866 has 8 divisors (see below), whose sum is σ = 157662567744. Its totient is φ = 26277094620.

The previous prime is 78831283837. The next prime is 78831283877. The reversal of 78831283866 is 66838213887.

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

78831283866 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6569273650 + ... + 6569273661.

It is an arithmetic number, because the mean of its divisors is an integer number (19707820968).

Almost surely, 2^78831283866 is an apocalyptic number.

78831283866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78831283866 is a wasteful number, since it uses less digits than its factorization.

78831283866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13138547316.

The product of its digits is 18579456, while the sum is 60.

The spelling of 78831283866 in words is "seventy-eight billion, eight hundred thirty-one million, two hundred eighty-three thousand, eight hundred sixty-six".