9778848223226 has 16 divisors (see below), whose sum is σ = 14908869286920. Its totient is φ = 4809226562880.

The previous prime is 9778848223217. The next prime is 9778848223271. The reversal of 9778848223226 is 6223228488779.

It is a Cunningham number, because it is equal to 3127115²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1471973136001 + 8306875087225 = 1213249^2 + 2882165^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16593860 + ... + 17173056.

Almost surely, 2^{9778848223226} is an apocalyptic number.

9778848223226 is a deficient number, since it is larger than the sum of its proper divisors (5130021063694).

9778848223226 is a wasteful number, since it uses less digits than its factorization.

9778848223226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717649.

The product of its digits is 260112384, while the sum is 68.

The spelling of 9778848223226 in words is "nine trillion, seven hundred seventy-eight billion, eight hundred forty-eight million, two hundred twenty-three thousand, two hundred twenty-six".