8720068669 has 8 divisors (see below), whose sum is σ = 9403914240. Its totient is φ = 8038090416.

The previous prime is 8720068663. The next prime is 8720068697. The reversal of 8720068669 is 9668600278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8720068669 - 2³ = 8720068661 is a prime.

It is a super-2 number, since 2×8720068669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8720068661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457117 + ... + 475810.

It is an arithmetic number, because the mean of its divisors is an integer number (1175489280).

Almost surely, 2^8720068669 is an apocalyptic number.

It is an amenable number.

8720068669 is a deficient number, since it is larger than the sum of its proper divisors (683845571).

8720068669 is a wasteful number, since it uses less digits than its factorization.

8720068669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933659.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 8720068669 is about 93381.3079208039. The cubic root of 8720068669 is about 2058.2903360481.

The spelling of 8720068669 in words is "eight billion, seven hundred twenty million, sixty-eight thousand, six hundred sixty-nine".