8719214721 has 32 divisors (see below), whose sum is σ = 13819846656. Its totient is φ = 4784832000.

The previous prime is 8719214663. The next prime is 8719214747. The reversal of 8719214721 is 1274129178.

It is not a de Polignac number, because 8719214721 - 2¹⁷ = 8719083649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8719214321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34161 + ... + 136401.

It is an arithmetic number, because the mean of its divisors is an integer number (431870208).

Almost surely, 2^8719214721 is an apocalyptic number.

It is an amenable number.

8719214721 is a deficient number, since it is larger than the sum of its proper divisors (5100631935).

8719214721 is a wasteful number, since it uses less digits than its factorization.

8719214721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102413.

The product of its digits is 56448, while the sum is 42.

The square root of 8719214721 is about 93376.7354376881. The cubic root of 8719214721 is about 2058.2231450522.

The spelling of 8719214721 in words is "eight billion, seven hundred nineteen million, two hundred fourteen thousand, seven hundred twenty-one".