800080008778 has 16 divisors (see below), whose sum is σ = 1217059629120. Its totient is φ = 394393804000.

The previous prime is 800080008757. The next prime is 800080008779. The reversal of 800080008778 is 877800080008.

It is not an unprimeable number, because it can be changed into a prime (800080008779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6421878 + ... + 6545278.

It is an arithmetic number, because the mean of its divisors is an integer number (76066226820).

Almost surely, 2^800080008778 is an apocalyptic number.

800080008778 is a deficient number, since it is larger than the sum of its proper divisors (416979620342).

800080008778 is a wasteful number, since it uses less digits than its factorization.

800080008778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169133.

The product of its (nonzero) digits is 200704, while the sum is 46.

The spelling of 800080008778 in words is "eight hundred billion, eighty million, eight thousand, seven hundred seventy-eight".