7722224866 has 4 divisors (see below), whose sum is σ = 11583337302. Its totient is φ = 3861112432.

The previous prime is 7722224863. The next prime is 7722224869. The reversal of 7722224866 is 6684222277.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7722224863) and next prime (7722224869).

It can be written as a sum of positive squares in only one way, i.e., 7599480625 + 122744241 = 87175^2 + 11079^2 .

It is not an unprimeable number, because it can be changed into a prime (7722224863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1930556215 + ... + 1930556218.

Almost surely, 2^7722224866 is an apocalyptic number.

7722224866 is a deficient number, since it is larger than the sum of its proper divisors (3861112436).

7722224866 is a wasteful number, since it uses less digits than its factorization.

7722224866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3861112435.

The product of its digits is 903168, while the sum is 46.

The square root of 7722224866 is about 87876.1905523902. The cubic root of 7722224866 is about 1976.5788680942.

The spelling of 7722224866 in words is "seven billion, seven hundred twenty-two million, two hundred twenty-four thousand, eight hundred sixty-six".