8816872778 has 16 divisors (see below), whose sum is σ = 15362421504. Its totient is φ = 3716714160.

The previous prime is 8816872763. The next prime is 8816872817. The reversal of 8816872778 is 8772786188.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8816872778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5161250 + ... + 5162957.

It is an arithmetic number, because the mean of its divisors is an integer number (960151344).

Almost surely, 2^8816872778 is an apocalyptic number.

8816872778 is a deficient number, since it is larger than the sum of its proper divisors (6545548726).

8816872778 is a wasteful number, since it uses less digits than its factorization.

8816872778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324277.

The product of its digits is 16859136, while the sum is 62.

The square root of 8816872778 is about 93898.2043385282. The cubic root of 8816872778 is about 2065.8788910058.

The spelling of 8816872778 in words is "eight billion, eight hundred sixteen million, eight hundred seventy-two thousand, seven hundred seventy-eight".