8719221695 has 16 divisors (see below), whose sum is σ = 11041267680. Its totient is φ = 6591744000.

The previous prime is 8719221691. The next prime is 8719221713. The reversal of 8719221695 is 5961229178.

It is not a de Polignac number, because 8719221695 - 2² = 8719221691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8719221691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76346 + ... + 152535.

It is an arithmetic number, because the mean of its divisors is an integer number (690079230).

Almost surely, 2^8719221695 is an apocalyptic number.

8719221695 is a deficient number, since it is larger than the sum of its proper divisors (2322045985).

8719221695 is a wasteful number, since it uses less digits than its factorization.

8719221695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229306.

The product of its digits is 544320, while the sum is 50.

The square root of 8719221695 is about 93376.7727810294. The cubic root of 8719221695 is about 2058.2236938036.

The spelling of 8719221695 in words is "eight billion, seven hundred nineteen million, two hundred twenty-one thousand, six hundred ninety-five".