8778916266 has 16 divisors (see below), whose sum is σ = 17665551264. Its totient is φ = 2908352304.

The previous prime is 8778916261. The next prime is 8778916273. The reversal of 8778916266 is 6626198778.

It is not an unprimeable number, because it can be changed into a prime (8778916261) 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, 4487221 + ... + 4489176.

It is an arithmetic number, because the mean of its divisors is an integer number (1104096954).

Almost surely, 2^8778916266 is an apocalyptic number.

8778916266 is an abundant number, since it is smaller than the sum of its proper divisors (8886634998).

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

8778916266 is a wasteful number, since it uses less digits than its factorization.

8778916266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8976565.

The product of its digits is 12192768, while the sum is 60.

The square root of 8778916266 is about 93695.8711256798. The cubic root of 8778916266 is about 2062.9101002993.

The spelling of 8778916266 in words is "eight billion, seven hundred seventy-eight million, nine hundred sixteen thousand, two hundred sixty-six".